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Finding the Fourth Proportional to 676,484.73, 933,195 and 418,279.14

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Solution

The fourth proportional to 676,484.73, 933,195 and 418,279.14 is: 577,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,484.73 : 933,195 = 418,279.14 : x
  2. Step 2: Convert to fraction form
    676,484.73/933,195 = 418,279.14/x
  3. Step 3: Cross multiply
    676,484.73x = 933,195 × 418,279.14
  4. Step 4: Simplify right side
    676,484.73x = 390,336,002,052.30
  5. Step 5: Solve for x
    x = 390,336,002,052.30/676,484.73
  6. Step 6: Final answer
    x = 577,006.38

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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.