Home / 1,028,249.09-1,541,366.90-429,381.52

Finding the Fourth Proportional to 1,028,249.09, 1,541,366.90 and 429,381.52

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Solution

The fourth proportional to 1,028,249.09, 1,541,366.90 and 429,381.52 is: 643,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,249.09 : 1,541,366.90 = 429,381.52 : x
  2. Step 2: Convert to fraction form
    1,028,249.09/1,541,366.90 = 429,381.52/x
  3. Step 3: Cross multiply
    1,028,249.09x = 1,541,366.90 × 429,381.52
  4. Step 4: Simplify right side
    1,028,249.09x = 661,834,456,399.36
  5. Step 5: Solve for x
    x = 661,834,456,399.36/1,028,249.09
  6. Step 6: Final answer
    x = 643,651.88

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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.