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Finding the Fourth Proportional to 658,613.73, 908,881.24 and 356,807.01

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Solution

The fourth proportional to 658,613.73, 908,881.24 and 356,807.01 is: 492,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,613.73 : 908,881.24 = 356,807.01 : x
  2. Step 2: Convert to fraction form
    658,613.73/908,881.24 = 356,807.01/x
  3. Step 3: Cross multiply
    658,613.73x = 908,881.24 × 356,807.01
  4. Step 4: Simplify right side
    658,613.73x = 324,295,197,689.49
  5. Step 5: Solve for x
    x = 324,295,197,689.49/658,613.73
  6. Step 6: Final answer
    x = 492,390.58

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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.