Home / 905,863.12-1,250,065.32-497,965.76

Finding the Fourth Proportional to 905,863.12, 1,250,065.32 and 497,965.76

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Solution

The fourth proportional to 905,863.12, 1,250,065.32 and 497,965.76 is: 687,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,863.12 : 1,250,065.32 = 497,965.76 : x
  2. Step 2: Convert to fraction form
    905,863.12/1,250,065.32 = 497,965.76/x
  3. Step 3: Cross multiply
    905,863.12x = 1,250,065.32 × 497,965.76
  4. Step 4: Simplify right side
    905,863.12x = 622,489,727,123.44
  5. Step 5: Solve for x
    x = 622,489,727,123.44/905,863.12
  6. Step 6: Final answer
    x = 687,178.57

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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.