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Finding the Fourth Proportional to 551,421.60, 826,095.60 and 284,272.80

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Solution

The fourth proportional to 551,421.60, 826,095.60 and 284,272.80 is: 425,874.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,421.60 : 826,095.60 = 284,272.80 : x
  2. Step 2: Convert to fraction form
    551,421.60/826,095.60 = 284,272.80/x
  3. Step 3: Cross multiply
    551,421.60x = 826,095.60 × 284,272.80
  4. Step 4: Simplify right side
    551,421.60x = 234,836,509,279.68
  5. Step 5: Solve for x
    x = 234,836,509,279.68/551,421.60
  6. Step 6: Final answer
    x = 425,874.70

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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.