Home / 987,079.80-1,480,619.70-514,687.80

Finding the Fourth Proportional to 987,079.80, 1,480,619.70 and 514,687.80

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Solution

The fourth proportional to 987,079.80, 1,480,619.70 and 514,687.80 is: 772,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,079.80 : 1,480,619.70 = 514,687.80 : x
  2. Step 2: Convert to fraction form
    987,079.80/1,480,619.70 = 514,687.80/x
  3. Step 3: Cross multiply
    987,079.80x = 1,480,619.70 × 514,687.80
  4. Step 4: Simplify right side
    987,079.80x = 762,056,896,029.66
  5. Step 5: Solve for x
    x = 762,056,896,029.66/987,079.80
  6. Step 6: Final answer
    x = 772,031.70

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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.