Home / 1,279,463.27-1,918,553.13-426,234.96

Finding the Fourth Proportional to 1,279,463.27, 1,918,553.13 and 426,234.96

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Solution

The fourth proportional to 1,279,463.27, 1,918,553.13 and 426,234.96 is: 639,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,463.27 : 1,918,553.13 = 426,234.96 : x
  2. Step 2: Convert to fraction form
    1,279,463.27/1,918,553.13 = 426,234.96/x
  3. Step 3: Cross multiply
    1,279,463.27x = 1,918,553.13 × 426,234.96
  4. Step 4: Simplify right side
    1,279,463.27x = 817,754,416,623.43
  5. Step 5: Solve for x
    x = 817,754,416,623.43/1,279,463.27
  6. Step 6: Final answer
    x = 639,138.64

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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.