Home / 1,086,546.80-1,629,747.30-287,811.20

Finding the Fourth Proportional to 1,086,546.80, 1,629,747.30 and 287,811.20

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Solution

The fourth proportional to 1,086,546.80, 1,629,747.30 and 287,811.20 is: 431,697.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,546.80 : 1,629,747.30 = 287,811.20 : x
  2. Step 2: Convert to fraction form
    1,086,546.80/1,629,747.30 = 287,811.20/x
  3. Step 3: Cross multiply
    1,086,546.80x = 1,629,747.30 × 287,811.20
  4. Step 4: Simplify right side
    1,086,546.80x = 469,059,526,109.76
  5. Step 5: Solve for x
    x = 469,059,526,109.76/1,086,546.80
  6. Step 6: Final answer
    x = 431,697.49

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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.