Home / 858,424.80-1,286,535.60-479,344.80

Finding the Fourth Proportional to 858,424.80, 1,286,535.60 and 479,344.80

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Solution

The fourth proportional to 858,424.80, 1,286,535.60 and 479,344.80 is: 718,402.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,424.80 : 1,286,535.60 = 479,344.80 : x
  2. Step 2: Convert to fraction form
    858,424.80/1,286,535.60 = 479,344.80/x
  3. Step 3: Cross multiply
    858,424.80x = 1,286,535.60 × 479,344.80
  4. Step 4: Simplify right side
    858,424.80x = 616,694,149,874.88
  5. Step 5: Solve for x
    x = 616,694,149,874.88/858,424.80
  6. Step 6: Final answer
    x = 718,402.07

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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.