Home / 858,758.20-1,288,137.30-699,325.90

Finding the Fourth Proportional to 858,758.20, 1,288,137.30 and 699,325.90

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Solution

The fourth proportional to 858,758.20, 1,288,137.30 and 699,325.90 is: 1,048,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,758.20 : 1,288,137.30 = 699,325.90 : x
  2. Step 2: Convert to fraction form
    858,758.20/1,288,137.30 = 699,325.90/x
  3. Step 3: Cross multiply
    858,758.20x = 1,288,137.30 × 699,325.90
  4. Step 4: Simplify right side
    858,758.20x = 900,827,776,646.07
  5. Step 5: Solve for x
    x = 900,827,776,646.07/858,758.20
  6. Step 6: Final answer
    x = 1,048,988.85

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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.