Home / 752,640.38-1,038,643.31-425,947.46

Finding the Fourth Proportional to 752,640.38, 1,038,643.31 and 425,947.46

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Solution

The fourth proportional to 752,640.38, 1,038,643.31 and 425,947.46 is: 587,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,640.38 : 1,038,643.31 = 425,947.46 : x
  2. Step 2: Convert to fraction form
    752,640.38/1,038,643.31 = 425,947.46/x
  3. Step 3: Cross multiply
    752,640.38x = 1,038,643.31 × 425,947.46
  4. Step 4: Simplify right side
    752,640.38x = 442,407,472,417.54
  5. Step 5: Solve for x
    x = 442,407,472,417.54/752,640.38
  6. Step 6: Final answer
    x = 587,807.25

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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.