Home / 918,335.70-1,377,143.10-349,414.65

Finding the Fourth Proportional to 918,335.70, 1,377,143.10 and 349,414.65

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Solution

The fourth proportional to 918,335.70, 1,377,143.10 and 349,414.65 is: 523,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,335.70 : 1,377,143.10 = 349,414.65 : x
  2. Step 2: Convert to fraction form
    918,335.70/1,377,143.10 = 349,414.65/x
  3. Step 3: Cross multiply
    918,335.70x = 1,377,143.10 × 349,414.65
  4. Step 4: Simplify right side
    918,335.70x = 481,193,974,286.42
  5. Step 5: Solve for x
    x = 481,193,974,286.42/918,335.70
  6. Step 6: Final answer
    x = 523,984.83

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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.