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Finding the Fourth Proportional to 656,085.30, 984,127.55 and 506,543.91

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Solution

The fourth proportional to 656,085.30, 984,127.55 and 506,543.91 is: 759,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,085.30 : 984,127.55 = 506,543.91 : x
  2. Step 2: Convert to fraction form
    656,085.30/984,127.55 = 506,543.91/x
  3. Step 3: Cross multiply
    656,085.30x = 984,127.55 × 506,543.91
  4. Step 4: Simplify right side
    656,085.30x = 498,503,814,583.00
  5. Step 5: Solve for x
    x = 498,503,814,583.00/656,085.30
  6. Step 6: Final answer
    x = 759,815.55

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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.