Home / 659,761.20-988,475.40-585,111.60

Finding the Fourth Proportional to 659,761.20, 988,475.40 and 585,111.60

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Solution

The fourth proportional to 659,761.20, 988,475.40 and 585,111.60 is: 876,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,761.20 : 988,475.40 = 585,111.60 : x
  2. Step 2: Convert to fraction form
    659,761.20/988,475.40 = 585,111.60/x
  3. Step 3: Cross multiply
    659,761.20x = 988,475.40 × 585,111.60
  4. Step 4: Simplify right side
    659,761.20x = 578,368,422,854.64
  5. Step 5: Solve for x
    x = 578,368,422,854.64/659,761.20
  6. Step 6: Final answer
    x = 876,632.97

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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.