Home / 753,253.60-1,129,899.12-220,718.56

Finding the Fourth Proportional to 753,253.60, 1,129,899.12 and 220,718.56

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Solution

The fourth proportional to 753,253.60, 1,129,899.12 and 220,718.56 is: 331,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,253.60 : 1,129,899.12 = 220,718.56 : x
  2. Step 2: Convert to fraction form
    753,253.60/1,129,899.12 = 220,718.56/x
  3. Step 3: Cross multiply
    753,253.60x = 1,129,899.12 × 220,718.56
  4. Step 4: Simplify right side
    753,253.60x = 249,389,706,711.67
  5. Step 5: Solve for x
    x = 249,389,706,711.67/753,253.60
  6. Step 6: Final answer
    x = 331,083.33

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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.