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Finding the Fourth Proportional to 658,633.16, 908,890.63 and 372,147.10

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Solution

The fourth proportional to 658,633.16, 908,890.63 and 372,147.10 is: 513,549.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,633.16 : 908,890.63 = 372,147.10 : x
  2. Step 2: Convert to fraction form
    658,633.16/908,890.63 = 372,147.10/x
  3. Step 3: Cross multiply
    658,633.16x = 908,890.63 × 372,147.10
  4. Step 4: Simplify right side
    658,633.16x = 338,241,012,171.67
  5. Step 5: Solve for x
    x = 338,241,012,171.67/658,633.16
  6. Step 6: Final answer
    x = 513,549.93

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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.