Home / 656,257.20-985,422.60-480,001.20

Finding the Fourth Proportional to 656,257.20, 985,422.60 and 480,001.20

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Solution

The fourth proportional to 656,257.20, 985,422.60 and 480,001.20 is: 720,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,257.20 : 985,422.60 = 480,001.20 : x
  2. Step 2: Convert to fraction form
    656,257.20/985,422.60 = 480,001.20/x
  3. Step 3: Cross multiply
    656,257.20x = 985,422.60 × 480,001.20
  4. Step 4: Simplify right side
    656,257.20x = 473,004,030,507.12
  5. Step 5: Solve for x
    x = 473,004,030,507.12/656,257.20
  6. Step 6: Final answer
    x = 720,760.14

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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.