Home / 752,806.40-1,129,382.72-220,314.88

Finding the Fourth Proportional to 752,806.40, 1,129,382.72 and 220,314.88

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Solution

The fourth proportional to 752,806.40, 1,129,382.72 and 220,314.88 is: 330,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,806.40 : 1,129,382.72 = 220,314.88 : x
  2. Step 2: Convert to fraction form
    752,806.40/1,129,382.72 = 220,314.88/x
  3. Step 3: Cross multiply
    752,806.40x = 1,129,382.72 × 220,314.88
  4. Step 4: Simplify right side
    752,806.40x = 248,819,818,430.87
  5. Step 5: Solve for x
    x = 248,819,818,430.87/752,806.40
  6. Step 6: Final answer
    x = 330,522.98

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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.