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Finding the Fourth Proportional to 501,680.52, 752,635.70 and 217,418.78

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Solution

The fourth proportional to 501,680.52, 752,635.70 and 217,418.78 is: 326,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,680.52 : 752,635.70 = 217,418.78 : x
  2. Step 2: Convert to fraction form
    501,680.52/752,635.70 = 217,418.78/x
  3. Step 3: Cross multiply
    501,680.52x = 752,635.70 × 217,418.78
  4. Step 4: Simplify right side
    501,680.52x = 163,637,137,288.26
  5. Step 5: Solve for x
    x = 163,637,137,288.26/501,680.52
  6. Step 6: Final answer
    x = 326,177.98

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1.5x scale

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.