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Finding the Fourth Proportional to 487,565.20, 730,035.60 and 487,565.20

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Solution

The fourth proportional to 487,565.20, 730,035.60 and 487,565.20 is: 730,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,565.20 : 730,035.60 = 487,565.20 : x
  2. Step 2: Convert to fraction form
    487,565.20/730,035.60 = 487,565.20/x
  3. Step 3: Cross multiply
    487,565.20x = 730,035.60 × 487,565.20
  4. Step 4: Simplify right side
    487,565.20x = 355,939,953,321.12
  5. Step 5: Solve for x
    x = 355,939,953,321.12/487,565.20
  6. Step 6: Final answer
    x = 730,035.60

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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.