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Finding the Fourth Proportional to 669,957.60, 924,531 and 368,145.12

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Solution

The fourth proportional to 669,957.60, 924,531 and 368,145.12 is: 508,034.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,957.60 : 924,531 = 368,145.12 : x
  2. Step 2: Convert to fraction form
    669,957.60/924,531 = 368,145.12/x
  3. Step 3: Cross multiply
    669,957.60x = 924,531 × 368,145.12
  4. Step 4: Simplify right side
    669,957.60x = 340,361,575,938.72
  5. Step 5: Solve for x
    x = 340,361,575,938.72/669,957.60
  6. Step 6: Final answer
    x = 508,034.50

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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.