Home / 1,458,043.20-2,187,064.80-858,695.85

Finding the Fourth Proportional to 1,458,043.20, 2,187,064.80 and 858,695.85

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Solution

The fourth proportional to 1,458,043.20, 2,187,064.80 and 858,695.85 is: 1,288,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,043.20 : 2,187,064.80 = 858,695.85 : x
  2. Step 2: Convert to fraction form
    1,458,043.20/2,187,064.80 = 858,695.85/x
  3. Step 3: Cross multiply
    1,458,043.20x = 2,187,064.80 × 858,695.85
  4. Step 4: Simplify right side
    1,458,043.20x = 1,878,023,467,441.08
  5. Step 5: Solve for x
    x = 1,878,023,467,441.08/1,458,043.20
  6. Step 6: Final answer
    x = 1,288,043.78

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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.