Home / 861,832.18-1,293,338.76-300,866.68

Finding the Fourth Proportional to 861,832.18, 1,293,338.76 and 300,866.68

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Solution

The fourth proportional to 861,832.18, 1,293,338.76 and 300,866.68 is: 451,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,832.18 : 1,293,338.76 = 300,866.68 : x
  2. Step 2: Convert to fraction form
    861,832.18/1,293,338.76 = 300,866.68/x
  3. Step 3: Cross multiply
    861,832.18x = 1,293,338.76 × 300,866.68
  4. Step 4: Simplify right side
    861,832.18x = 389,122,538,836.52
  5. Step 5: Solve for x
    x = 389,122,538,836.52/861,832.18
  6. Step 6: Final answer
    x = 451,506.16

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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.