Home / 1,330,390.20-1,995,390.90-383,662.20

Finding the Fourth Proportional to 1,330,390.20, 1,995,390.90 and 383,662.20

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Solution

The fourth proportional to 1,330,390.20, 1,995,390.90 and 383,662.20 is: 575,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,390.20 : 1,995,390.90 = 383,662.20 : x
  2. Step 2: Convert to fraction form
    1,330,390.20/1,995,390.90 = 383,662.20/x
  3. Step 3: Cross multiply
    1,330,390.20x = 1,995,390.90 × 383,662.20
  4. Step 4: Simplify right side
    1,330,390.20x = 765,556,062,553.98
  5. Step 5: Solve for x
    x = 765,556,062,553.98/1,330,390.20
  6. Step 6: Final answer
    x = 575,437.24

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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.