Home / 752,961.40-1,129,359.46-220,487.76

Finding the Fourth Proportional to 752,961.40, 1,129,359.46 and 220,487.76

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Solution

The fourth proportional to 752,961.40, 1,129,359.46 and 220,487.76 is: 330,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,961.40 : 1,129,359.46 = 220,487.76 : x
  2. Step 2: Convert to fraction form
    752,961.40/1,129,359.46 = 220,487.76/x
  3. Step 3: Cross multiply
    752,961.40x = 1,129,359.46 × 220,487.76
  4. Step 4: Simplify right side
    752,961.40x = 249,009,937,570.21
  5. Step 5: Solve for x
    x = 249,009,937,570.21/752,961.40
  6. Step 6: Final answer
    x = 330,707.44

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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.