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Finding the Fourth Proportional to 658,042.82, 908,099.40 and 356,236.82

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Solution

The fourth proportional to 658,042.82, 908,099.40 and 356,236.82 is: 491,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,042.82 : 908,099.40 = 356,236.82 : x
  2. Step 2: Convert to fraction form
    658,042.82/908,099.40 = 356,236.82/x
  3. Step 3: Cross multiply
    658,042.82x = 908,099.40 × 356,236.82
  4. Step 4: Simplify right side
    658,042.82x = 323,498,442,499.91
  5. Step 5: Solve for x
    x = 323,498,442,499.91/658,042.82
  6. Step 6: Final answer
    x = 491,606.98

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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.