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Finding the Fourth Proportional to 487,205.40, 730,808.10 and 337,614.60

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Solution

The fourth proportional to 487,205.40, 730,808.10 and 337,614.60 is: 506,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,205.40 : 730,808.10 = 337,614.60 : x
  2. Step 2: Convert to fraction form
    487,205.40/730,808.10 = 337,614.60/x
  3. Step 3: Cross multiply
    487,205.40x = 730,808.10 × 337,614.60
  4. Step 4: Simplify right side
    487,205.40x = 246,731,484,358.26
  5. Step 5: Solve for x
    x = 246,731,484,358.26/487,205.40
  6. Step 6: Final answer
    x = 506,421.90

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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.