Home / 739,830.78-1,109,079.72-266,182.88

Finding the Fourth Proportional to 739,830.78, 1,109,079.72 and 266,182.88

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Solution

The fourth proportional to 739,830.78, 1,109,079.72 and 266,182.88 is: 399,034.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,830.78 : 1,109,079.72 = 266,182.88 : x
  2. Step 2: Convert to fraction form
    739,830.78/1,109,079.72 = 266,182.88/x
  3. Step 3: Cross multiply
    739,830.78x = 1,109,079.72 × 266,182.88
  4. Step 4: Simplify right side
    739,830.78x = 295,218,028,473.80
  5. Step 5: Solve for x
    x = 295,218,028,473.80/739,830.78
  6. Step 6: Final answer
    x = 399,034.53

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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.