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Finding the Fourth Proportional to 551,204.64, 826,030.17 and 438,384.60

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Solution

The fourth proportional to 551,204.64, 826,030.17 and 438,384.60 is: 656,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,204.64 : 826,030.17 = 438,384.60 : x
  2. Step 2: Convert to fraction form
    551,204.64/826,030.17 = 438,384.60/x
  3. Step 3: Cross multiply
    551,204.64x = 826,030.17 × 438,384.60
  4. Step 4: Simplify right side
    551,204.64x = 362,118,905,663.38
  5. Step 5: Solve for x
    x = 362,118,905,663.38/551,204.64
  6. Step 6: Final answer
    x = 656,959.10

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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.