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Finding the Fourth Proportional to 551,002.91, 826,127.01 and 280,607.63

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Solution

The fourth proportional to 551,002.91, 826,127.01 and 280,607.63 is: 420,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,002.91 : 826,127.01 = 280,607.63 : x
  2. Step 2: Convert to fraction form
    551,002.91/826,127.01 = 280,607.63/x
  3. Step 3: Cross multiply
    551,002.91x = 826,127.01 × 280,607.63
  4. Step 4: Simplify right side
    551,002.91x = 231,817,538,224.45
  5. Step 5: Solve for x
    x = 231,817,538,224.45/551,002.91
  6. Step 6: Final answer
    x = 420,719.27

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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.