Home / 878,617.80-1,316,422.24-479,538.61

Finding the Fourth Proportional to 878,617.80, 1,316,422.24 and 479,538.61

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Solution

The fourth proportional to 878,617.80, 1,316,422.24 and 479,538.61 is: 718,486.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,617.80 : 1,316,422.24 = 479,538.61 : x
  2. Step 2: Convert to fraction form
    878,617.80/1,316,422.24 = 479,538.61/x
  3. Step 3: Cross multiply
    878,617.80x = 1,316,422.24 × 479,538.61
  4. Step 4: Simplify right side
    878,617.80x = 631,275,286,652.78
  5. Step 5: Solve for x
    x = 631,275,286,652.78/878,617.80
  6. Step 6: Final answer
    x = 718,486.79

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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.