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Finding the Fourth Proportional to 658,640.46, 908,924.73 and 356,834.46

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Solution

The fourth proportional to 658,640.46, 908,924.73 and 356,834.46 is: 492,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,640.46 : 908,924.73 = 356,834.46 : x
  2. Step 2: Convert to fraction form
    658,640.46/908,924.73 = 356,834.46/x
  3. Step 3: Cross multiply
    658,640.46x = 908,924.73 × 356,834.46
  4. Step 4: Simplify right side
    658,640.46x = 324,335,665,210.20
  5. Step 5: Solve for x
    x = 324,335,665,210.20/658,640.46
  6. Step 6: Final answer
    x = 492,432.04

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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.