Home / 752,439.34-1,038,378.99-412,939.18

Finding the Fourth Proportional to 752,439.34, 1,038,378.99 and 412,939.18

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Solution

The fourth proportional to 752,439.34, 1,038,378.99 and 412,939.18 is: 569,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,439.34 : 1,038,378.99 = 412,939.18 : x
  2. Step 2: Convert to fraction form
    752,439.34/1,038,378.99 = 412,939.18/x
  3. Step 3: Cross multiply
    752,439.34x = 1,038,378.99 × 412,939.18
  4. Step 4: Simplify right side
    752,439.34x = 428,787,368,659.83
  5. Step 5: Solve for x
    x = 428,787,368,659.83/752,439.34
  6. Step 6: Final answer
    x = 569,863.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.