Home / 748,687.28-1,033,188.84-409,155.48

Finding the Fourth Proportional to 748,687.28, 1,033,188.84 and 409,155.48

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Solution

The fourth proportional to 748,687.28, 1,033,188.84 and 409,155.48 is: 564,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,687.28 : 1,033,188.84 = 409,155.48 : x
  2. Step 2: Convert to fraction form
    748,687.28/1,033,188.84 = 409,155.48/x
  3. Step 3: Cross multiply
    748,687.28x = 1,033,188.84 × 409,155.48
  4. Step 4: Simplify right side
    748,687.28x = 422,734,875,760.84
  5. Step 5: Solve for x
    x = 422,734,875,760.84/748,687.28
  6. Step 6: Final answer
    x = 564,634.78

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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.