Home / 858,782.20-1,288,173.30-498,583.30

Finding the Fourth Proportional to 858,782.20, 1,288,173.30 and 498,583.30

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Solution

The fourth proportional to 858,782.20, 1,288,173.30 and 498,583.30 is: 747,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,782.20 : 1,288,173.30 = 498,583.30 : x
  2. Step 2: Convert to fraction form
    858,782.20/1,288,173.30 = 498,583.30/x
  3. Step 3: Cross multiply
    858,782.20x = 1,288,173.30 × 498,583.30
  4. Step 4: Simplify right side
    858,782.20x = 642,261,694,885.89
  5. Step 5: Solve for x
    x = 642,261,694,885.89/858,782.20
  6. Step 6: Final answer
    x = 747,874.95

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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.