Home / 838,589.80-1,257,366.30-483,428.20

Finding the Fourth Proportional to 838,589.80, 1,257,366.30 and 483,428.20

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Solution

The fourth proportional to 838,589.80, 1,257,366.30 and 483,428.20 is: 724,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,589.80 : 1,257,366.30 = 483,428.20 : x
  2. Step 2: Convert to fraction form
    838,589.80/1,257,366.30 = 483,428.20/x
  3. Step 3: Cross multiply
    838,589.80x = 1,257,366.30 × 483,428.20
  4. Step 4: Simplify right side
    838,589.80x = 607,846,327,149.66
  5. Step 5: Solve for x
    x = 607,846,327,149.66/838,589.80
  6. Step 6: Final answer
    x = 724,843.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.