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Finding the Fourth Proportional to 669,610.44, 924,069.20 and 363,689.78

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Solution

The fourth proportional to 669,610.44, 924,069.20 and 363,689.78 is: 501,895.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,610.44 : 924,069.20 = 363,689.78 : x
  2. Step 2: Convert to fraction form
    669,610.44/924,069.20 = 363,689.78/x
  3. Step 3: Cross multiply
    669,610.44x = 924,069.20 × 363,689.78
  4. Step 4: Simplify right side
    669,610.44x = 336,074,517,613.98
  5. Step 5: Solve for x
    x = 336,074,517,613.98/669,610.44
  6. Step 6: Final answer
    x = 501,895.58

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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.