Home / 987,454.53-1,480,761.21-387,995.18

Finding the Fourth Proportional to 987,454.53, 1,480,761.21 and 387,995.18

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Solution

The fourth proportional to 987,454.53, 1,480,761.21 and 387,995.18 is: 581,827.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,454.53 : 1,480,761.21 = 387,995.18 : x
  2. Step 2: Convert to fraction form
    987,454.53/1,480,761.21 = 387,995.18/x
  3. Step 3: Cross multiply
    987,454.53x = 1,480,761.21 × 387,995.18
  4. Step 4: Simplify right side
    987,454.53x = 574,528,204,807.16
  5. Step 5: Solve for x
    x = 574,528,204,807.16/987,454.53
  6. Step 6: Final answer
    x = 581,827.51

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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.