Home / 887,067.80-1,330,601.70-688,002.20

Finding the Fourth Proportional to 887,067.80, 1,330,601.70 and 688,002.20

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Solution

The fourth proportional to 887,067.80, 1,330,601.70 and 688,002.20 is: 1,032,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,067.80 : 1,330,601.70 = 688,002.20 : x
  2. Step 2: Convert to fraction form
    887,067.80/1,330,601.70 = 688,002.20/x
  3. Step 3: Cross multiply
    887,067.80x = 1,330,601.70 × 688,002.20
  4. Step 4: Simplify right side
    887,067.80x = 915,456,896,923.74
  5. Step 5: Solve for x
    x = 915,456,896,923.74/887,067.80
  6. Step 6: Final answer
    x = 1,032,003.30

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Double scale
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Similar ratio
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1.5x scale

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.