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Finding the Fourth Proportional to 476,450.50, 657,314.16 and 272,391.78

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Solution

The fourth proportional to 476,450.50, 657,314.16 and 272,391.78 is: 375,793.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,450.50 : 657,314.16 = 272,391.78 : x
  2. Step 2: Convert to fraction form
    476,450.50/657,314.16 = 272,391.78/x
  3. Step 3: Cross multiply
    476,450.50x = 657,314.16 × 272,391.78
  4. Step 4: Simplify right side
    476,450.50x = 179,046,974,061.61
  5. Step 5: Solve for x
    x = 179,046,974,061.61/476,450.50
  6. Step 6: Final answer
    x = 375,793.44

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1.5x scale

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.