Home / 492,577.38-679,743.18-277,715.55

Finding the Fourth Proportional to 492,577.38, 679,743.18 and 277,715.55

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Solution

The fourth proportional to 492,577.38, 679,743.18 and 277,715.55 is: 383,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,577.38 : 679,743.18 = 277,715.55 : x
  2. Step 2: Convert to fraction form
    492,577.38/679,743.18 = 277,715.55/x
  3. Step 3: Cross multiply
    492,577.38x = 679,743.18 × 277,715.55
  4. Step 4: Simplify right side
    492,577.38x = 188,775,251,092.45
  5. Step 5: Solve for x
    x = 188,775,251,092.45/492,577.38
  6. Step 6: Final answer
    x = 383,239.79

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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.