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Finding the Fourth Proportional to 669,840.64, 924,151.46 and 415,098.88

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Solution

The fourth proportional to 669,840.64, 924,151.46 and 415,098.88 is: 572,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,840.64 : 924,151.46 = 415,098.88 : x
  2. Step 2: Convert to fraction form
    669,840.64/924,151.46 = 415,098.88/x
  3. Step 3: Cross multiply
    669,840.64x = 924,151.46 × 415,098.88
  4. Step 4: Simplify right side
    669,840.64x = 383,614,235,996.37
  5. Step 5: Solve for x
    x = 383,614,235,996.37/669,840.64
  6. Step 6: Final answer
    x = 572,694.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.