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Finding the Fourth Proportional to 658,488.96, 908,713.92 and 356,684.16

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Solution

The fourth proportional to 658,488.96, 908,713.92 and 356,684.16 is: 492,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,488.96 : 908,713.92 = 356,684.16 : x
  2. Step 2: Convert to fraction form
    658,488.96/908,713.92 = 356,684.16/x
  3. Step 3: Cross multiply
    658,488.96x = 908,713.92 × 356,684.16
  4. Step 4: Simplify right side
    658,488.96x = 324,123,861,235.51
  5. Step 5: Solve for x
    x = 324,123,861,235.51/658,488.96
  6. Step 6: Final answer
    x = 492,223.68

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Double scale
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Similar ratio
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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.