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Finding the Fourth Proportional to 551,214.80, 826,822.20 and 383,253.20

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Solution

The fourth proportional to 551,214.80, 826,822.20 and 383,253.20 is: 574,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,214.80 : 826,822.20 = 383,253.20 : x
  2. Step 2: Convert to fraction form
    551,214.80/826,822.20 = 383,253.20/x
  3. Step 3: Cross multiply
    551,214.80x = 826,822.20 × 383,253.20
  4. Step 4: Simplify right side
    551,214.80x = 316,882,253,981.04
  5. Step 5: Solve for x
    x = 316,882,253,981.04/551,214.80
  6. Step 6: Final answer
    x = 574,879.80

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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.