Home / 1,050,145.35-1,449,229.89-642,239.88

Finding the Fourth Proportional to 1,050,145.35, 1,449,229.89 and 642,239.88

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Solution

The fourth proportional to 1,050,145.35, 1,449,229.89 and 642,239.88 is: 886,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050,145.35 : 1,449,229.89 = 642,239.88 : x
  2. Step 2: Convert to fraction form
    1,050,145.35/1,449,229.89 = 642,239.88/x
  3. Step 3: Cross multiply
    1,050,145.35x = 1,449,229.89 × 642,239.88
  4. Step 4: Simplify right side
    1,050,145.35x = 930,753,230,646.01
  5. Step 5: Solve for x
    x = 930,753,230,646.01/1,050,145.35
  6. Step 6: Final answer
    x = 886,308.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.