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Finding the Fourth Proportional to 487,210.40, 730,815.60 and 337,619.60

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Solution

The fourth proportional to 487,210.40, 730,815.60 and 337,619.60 is: 506,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,210.40 : 730,815.60 = 337,619.60 : x
  2. Step 2: Convert to fraction form
    487,210.40/730,815.60 = 337,619.60/x
  3. Step 3: Cross multiply
    487,210.40x = 730,815.60 × 337,619.60
  4. Step 4: Simplify right side
    487,210.40x = 246,737,670,545.76
  5. Step 5: Solve for x
    x = 246,737,670,545.76/487,210.40
  6. Step 6: Final answer
    x = 506,429.40

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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.