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Finding the Fourth Proportional to 674,234.93, 930,472.49 and 387,755.24

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Solution

The fourth proportional to 674,234.93, 930,472.49 and 387,755.24 is: 535,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,234.93 : 930,472.49 = 387,755.24 : x
  2. Step 2: Convert to fraction form
    674,234.93/930,472.49 = 387,755.24/x
  3. Step 3: Cross multiply
    674,234.93x = 930,472.49 × 387,755.24
  4. Step 4: Simplify right side
    674,234.93x = 360,795,584,060.75
  5. Step 5: Solve for x
    x = 360,795,584,060.75/674,234.93
  6. Step 6: Final answer
    x = 535,118.50

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Double scale
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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.