Home / 905,869.38-1,250,115.54-497,988.42

Finding the Fourth Proportional to 905,869.38, 1,250,115.54 and 497,988.42

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Solution

The fourth proportional to 905,869.38, 1,250,115.54 and 497,988.42 is: 687,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,869.38 : 1,250,115.54 = 497,988.42 : x
  2. Step 2: Convert to fraction form
    905,869.38/1,250,115.54 = 497,988.42/x
  3. Step 3: Cross multiply
    905,869.38x = 1,250,115.54 × 497,988.42
  4. Step 4: Simplify right side
    905,869.38x = 622,543,062,582.05
  5. Step 5: Solve for x
    x = 622,543,062,582.05/905,869.38
  6. Step 6: Final answer
    x = 687,232.70

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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.