Home / 752,866.80-1,129,300.20-379,618.80

Finding the Fourth Proportional to 752,866.80, 1,129,300.20 and 379,618.80

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Solution

The fourth proportional to 752,866.80, 1,129,300.20 and 379,618.80 is: 569,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,866.80 : 1,129,300.20 = 379,618.80 : x
  2. Step 2: Convert to fraction form
    752,866.80/1,129,300.20 = 379,618.80/x
  3. Step 3: Cross multiply
    752,866.80x = 1,129,300.20 × 379,618.80
  4. Step 4: Simplify right side
    752,866.80x = 428,703,586,763.76
  5. Step 5: Solve for x
    x = 428,703,586,763.76/752,866.80
  6. Step 6: Final answer
    x = 569,428.20

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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.