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Finding the Fourth Proportional to 676,475.76, 933,468.60 and 404,489.16

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Solution

The fourth proportional to 676,475.76, 933,468.60 and 404,489.16 is: 558,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,475.76 : 933,468.60 = 404,489.16 : x
  2. Step 2: Convert to fraction form
    676,475.76/933,468.60 = 404,489.16/x
  3. Step 3: Cross multiply
    676,475.76x = 933,468.60 × 404,489.16
  4. Step 4: Simplify right side
    676,475.76x = 377,577,929,900.38
  5. Step 5: Solve for x
    x = 377,577,929,900.38/676,475.76
  6. Step 6: Final answer
    x = 558,154.41

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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.