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Finding the Fourth Proportional to 658,627.69, 908,894.41 and 372,141.63

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Solution

The fourth proportional to 658,627.69, 908,894.41 and 372,141.63 is: 513,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,627.69 : 908,894.41 = 372,141.63 : x
  2. Step 2: Convert to fraction form
    658,627.69/908,894.41 = 372,141.63/x
  3. Step 3: Cross multiply
    658,627.69x = 908,894.41 × 372,141.63
  4. Step 4: Simplify right side
    658,627.69x = 338,237,447,235.29
  5. Step 5: Solve for x
    x = 338,237,447,235.29/658,627.69
  6. Step 6: Final answer
    x = 513,548.78

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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.