Home / 1,028,560.20-1,543,086.60-429,187.92

Finding the Fourth Proportional to 1,028,560.20, 1,543,086.60 and 429,187.92

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Solution

The fourth proportional to 1,028,560.20, 1,543,086.60 and 429,187.92 is: 643,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,560.20 : 1,543,086.60 = 429,187.92 : x
  2. Step 2: Convert to fraction form
    1,028,560.20/1,543,086.60 = 429,187.92/x
  3. Step 3: Cross multiply
    1,028,560.20x = 1,543,086.60 × 429,187.92
  4. Step 4: Simplify right side
    1,028,560.20x = 662,274,128,233.87
  5. Step 5: Solve for x
    x = 662,274,128,233.87/1,028,560.20
  6. Step 6: Final answer
    x = 643,884.65

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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.