Home / 688,701.40-1,033,052.10-215,531.80

Finding the Fourth Proportional to 688,701.40, 1,033,052.10 and 215,531.80

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Solution

The fourth proportional to 688,701.40, 1,033,052.10 and 215,531.80 is: 323,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,701.40 : 1,033,052.10 = 215,531.80 : x
  2. Step 2: Convert to fraction form
    688,701.40/1,033,052.10 = 215,531.80/x
  3. Step 3: Cross multiply
    688,701.40x = 1,033,052.10 × 215,531.80
  4. Step 4: Simplify right side
    688,701.40x = 222,655,578,606.78
  5. Step 5: Solve for x
    x = 222,655,578,606.78/688,701.40
  6. Step 6: Final answer
    x = 323,297.70

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Similar ratio
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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.