Home / 688,672.10-1,033,008.15-215,405.30

Finding the Fourth Proportional to 688,672.10, 1,033,008.15 and 215,405.30

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Solution

The fourth proportional to 688,672.10, 1,033,008.15 and 215,405.30 is: 323,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,672.10 : 1,033,008.15 = 215,405.30 : x
  2. Step 2: Convert to fraction form
    688,672.10/1,033,008.15 = 215,405.30/x
  3. Step 3: Cross multiply
    688,672.10x = 1,033,008.15 × 215,405.30
  4. Step 4: Simplify right side
    688,672.10x = 222,515,430,453.20
  5. Step 5: Solve for x
    x = 222,515,430,453.20/688,672.10
  6. Step 6: Final answer
    x = 323,107.95

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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.