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Finding the Fourth Proportional to 658,676.52, 908,976.87 and 356,870.52

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Solution

The fourth proportional to 658,676.52, 908,976.87 and 356,870.52 is: 492,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,676.52 : 908,976.87 = 356,870.52 : x
  2. Step 2: Convert to fraction form
    658,676.52/908,976.87 = 356,870.52/x
  3. Step 3: Cross multiply
    658,676.52x = 908,976.87 × 356,870.52
  4. Step 4: Simplify right side
    658,676.52x = 324,387,048,264.87
  5. Step 5: Solve for x
    x = 324,387,048,264.87/658,676.52
  6. Step 6: Final answer
    x = 492,483.09

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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.