Home / 887,098.80-1,328,679.90-686,332.20

Finding the Fourth Proportional to 887,098.80, 1,328,679.90 and 686,332.20

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Solution

The fourth proportional to 887,098.80, 1,328,679.90 and 686,332.20 is: 1,027,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,098.80 : 1,328,679.90 = 686,332.20 : x
  2. Step 2: Convert to fraction form
    887,098.80/1,328,679.90 = 686,332.20/x
  3. Step 3: Cross multiply
    887,098.80x = 1,328,679.90 × 686,332.20
  4. Step 4: Simplify right side
    887,098.80x = 911,915,798,862.78
  5. Step 5: Solve for x
    x = 911,915,798,862.78/887,098.80
  6. Step 6: Final answer
    x = 1,027,975.46

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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.