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Finding the Fourth Proportional to 658,908, 988,385.76 and 185,634.72

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Solution

The fourth proportional to 658,908, 988,385.76 and 185,634.72 is: 278,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,908 : 988,385.76 = 185,634.72 : x
  2. Step 2: Convert to fraction form
    658,908/988,385.76 = 185,634.72/x
  3. Step 3: Cross multiply
    658,908x = 988,385.76 × 185,634.72
  4. Step 4: Simplify right side
    658,908x = 183,478,713,809.59
  5. Step 5: Solve for x
    x = 183,478,713,809.59/658,908
  6. Step 6: Final answer
    x = 278,458.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.