Home / 1,330,387.80-1,995,581.70-383,789.40

Finding the Fourth Proportional to 1,330,387.80, 1,995,581.70 and 383,789.40

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Solution

The fourth proportional to 1,330,387.80, 1,995,581.70 and 383,789.40 is: 575,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,387.80 : 1,995,581.70 = 383,789.40 : x
  2. Step 2: Convert to fraction form
    1,330,387.80/1,995,581.70 = 383,789.40/x
  3. Step 3: Cross multiply
    1,330,387.80x = 1,995,581.70 × 383,789.40
  4. Step 4: Simplify right side
    1,330,387.80x = 765,883,103,293.98
  5. Step 5: Solve for x
    x = 765,883,103,293.98/1,330,387.80
  6. Step 6: Final answer
    x = 575,684.10

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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.