Home / 753,158.12-1,129,736.95-220,679

Finding the Fourth Proportional to 753,158.12, 1,129,736.95 and 220,679

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Solution

The fourth proportional to 753,158.12, 1,129,736.95 and 220,679 is: 331,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,158.12 : 1,129,736.95 = 220,679 : x
  2. Step 2: Convert to fraction form
    753,158.12/1,129,736.95 = 220,679/x
  3. Step 3: Cross multiply
    753,158.12x = 1,129,736.95 × 220,679
  4. Step 4: Simplify right side
    753,158.12x = 249,309,220,389.05
  5. Step 5: Solve for x
    x = 249,309,220,389.05/753,158.12
  6. Step 6: Final answer
    x = 331,018.43

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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.