Home / 752,947.20-1,129,420.80-254,311.20

Finding the Fourth Proportional to 752,947.20, 1,129,420.80 and 254,311.20

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Solution

The fourth proportional to 752,947.20, 1,129,420.80 and 254,311.20 is: 381,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,947.20 : 1,129,420.80 = 254,311.20 : x
  2. Step 2: Convert to fraction form
    752,947.20/1,129,420.80 = 254,311.20/x
  3. Step 3: Cross multiply
    752,947.20x = 1,129,420.80 × 254,311.20
  4. Step 4: Simplify right side
    752,947.20x = 287,224,358,952.96
  5. Step 5: Solve for x
    x = 287,224,358,952.96/752,947.20
  6. Step 6: Final answer
    x = 381,466.80

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Double scale
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Similar ratio
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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.