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Finding the Fourth Proportional to 539,326.20, 808,989.30 and 506,083.80

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Solution

The fourth proportional to 539,326.20, 808,989.30 and 506,083.80 is: 759,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,326.20 : 808,989.30 = 506,083.80 : x
  2. Step 2: Convert to fraction form
    539,326.20/808,989.30 = 506,083.80/x
  3. Step 3: Cross multiply
    539,326.20x = 808,989.30 × 506,083.80
  4. Step 4: Simplify right side
    539,326.20x = 409,416,379,103.34
  5. Step 5: Solve for x
    x = 409,416,379,103.34/539,326.20
  6. Step 6: Final answer
    x = 759,125.70

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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.