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Finding the Fourth Proportional to 658,044.80, 908,102.16 and 356,238.80

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Solution

The fourth proportional to 658,044.80, 908,102.16 and 356,238.80 is: 491,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,044.80 : 908,102.16 = 356,238.80 : x
  2. Step 2: Convert to fraction form
    658,044.80/908,102.16 = 356,238.80/x
  3. Step 3: Cross multiply
    658,044.80x = 908,102.16 × 356,238.80
  4. Step 4: Simplify right side
    658,044.80x = 323,501,223,755.81
  5. Step 5: Solve for x
    x = 323,501,223,755.81/658,044.80
  6. Step 6: Final answer
    x = 491,609.73

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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.