Home / 688,761.70-1,033,210.59-215,456.02

Finding the Fourth Proportional to 688,761.70, 1,033,210.59 and 215,456.02

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Solution

The fourth proportional to 688,761.70, 1,033,210.59 and 215,456.02 is: 323,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,761.70 : 1,033,210.59 = 215,456.02 : x
  2. Step 2: Convert to fraction form
    688,761.70/1,033,210.59 = 215,456.02/x
  3. Step 3: Cross multiply
    688,761.70x = 1,033,210.59 × 215,456.02
  4. Step 4: Simplify right side
    688,761.70x = 222,611,441,543.25
  5. Step 5: Solve for x
    x = 222,611,441,543.25/688,761.70
  6. Step 6: Final answer
    x = 323,205.31

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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.