Home / 1,458,288.70-2,188,729.05-858,499.90

Finding the Fourth Proportional to 1,458,288.70, 2,188,729.05 and 858,499.90

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Solution

The fourth proportional to 1,458,288.70, 2,188,729.05 and 858,499.90 is: 1,288,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,288.70 : 2,188,729.05 = 858,499.90 : x
  2. Step 2: Convert to fraction form
    1,458,288.70/2,188,729.05 = 858,499.90/x
  3. Step 3: Cross multiply
    1,458,288.70x = 2,188,729.05 × 858,499.90
  4. Step 4: Simplify right side
    1,458,288.70x = 1,879,023,670,552.10
  5. Step 5: Solve for x
    x = 1,879,023,670,552.10/1,458,288.70
  6. Step 6: Final answer
    x = 1,288,512.81

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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.