Home / 726,175.95-1,002,052.70-420,191.43

Finding the Fourth Proportional to 726,175.95, 1,002,052.70 and 420,191.43

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Solution

The fourth proportional to 726,175.95, 1,002,052.70 and 420,191.43 is: 579,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,175.95 : 1,002,052.70 = 420,191.43 : x
  2. Step 2: Convert to fraction form
    726,175.95/1,002,052.70 = 420,191.43/x
  3. Step 3: Cross multiply
    726,175.95x = 1,002,052.70 × 420,191.43
  4. Step 4: Simplify right side
    726,175.95x = 421,053,954,847.40
  5. Step 5: Solve for x
    x = 421,053,954,847.40/726,175.95
  6. Step 6: Final answer
    x = 579,823.60

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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.