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Finding the Fourth Proportional to 531,908.60, 797,466.10 and 321,502.20

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Solution

The fourth proportional to 531,908.60, 797,466.10 and 321,502.20 is: 482,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,908.60 : 797,466.10 = 321,502.20 : x
  2. Step 2: Convert to fraction form
    531,908.60/797,466.10 = 321,502.20/x
  3. Step 3: Cross multiply
    531,908.60x = 797,466.10 × 321,502.20
  4. Step 4: Simplify right side
    531,908.60x = 256,387,105,575.42
  5. Step 5: Solve for x
    x = 256,387,105,575.42/531,908.60
  6. Step 6: Final answer
    x = 482,013.46

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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.