Home / 1,330,391.80-1,995,587.70-383,793.40

Finding the Fourth Proportional to 1,330,391.80, 1,995,587.70 and 383,793.40

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Solution

The fourth proportional to 1,330,391.80, 1,995,587.70 and 383,793.40 is: 575,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,391.80 : 1,995,587.70 = 383,793.40 : x
  2. Step 2: Convert to fraction form
    1,330,391.80/1,995,587.70 = 383,793.40/x
  3. Step 3: Cross multiply
    1,330,391.80x = 1,995,587.70 × 383,793.40
  4. Step 4: Simplify right side
    1,330,391.80x = 765,893,388,381.18
  5. Step 5: Solve for x
    x = 765,893,388,381.18/1,330,391.80
  6. Step 6: Final answer
    x = 575,690.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.