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Finding the Fourth Proportional to 658,610.48, 908,876.76 and 356,803.76

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Solution

The fourth proportional to 658,610.48, 908,876.76 and 356,803.76 is: 492,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,610.48 : 908,876.76 = 356,803.76 : x
  2. Step 2: Convert to fraction form
    658,610.48/908,876.76 = 356,803.76/x
  3. Step 3: Cross multiply
    658,610.48x = 908,876.76 × 356,803.76
  4. Step 4: Simplify right side
    658,610.48x = 324,290,645,344.62
  5. Step 5: Solve for x
    x = 324,290,645,344.62/658,610.48
  6. Step 6: Final answer
    x = 492,386.10

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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.