Home / 726,672.09-1,002,792.63-454,889.84

Finding the Fourth Proportional to 726,672.09, 1,002,792.63 and 454,889.84

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Solution

The fourth proportional to 726,672.09, 1,002,792.63 and 454,889.84 is: 627,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,672.09 : 1,002,792.63 = 454,889.84 : x
  2. Step 2: Convert to fraction form
    726,672.09/1,002,792.63 = 454,889.84/x
  3. Step 3: Cross multiply
    726,672.09x = 1,002,792.63 × 454,889.84
  4. Step 4: Simplify right side
    726,672.09x = 456,160,181,520.86
  5. Step 5: Solve for x
    x = 456,160,181,520.86/726,672.09
  6. Step 6: Final answer
    x = 627,738.68

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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.