Home / 1,245,959.50-1,719,424.88-672,999.68

Finding the Fourth Proportional to 1,245,959.50, 1,719,424.88 and 672,999.68

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Solution

The fourth proportional to 1,245,959.50, 1,719,424.88 and 672,999.68 is: 928,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,959.50 : 1,719,424.88 = 672,999.68 : x
  2. Step 2: Convert to fraction form
    1,245,959.50/1,719,424.88 = 672,999.68/x
  3. Step 3: Cross multiply
    1,245,959.50x = 1,719,424.88 × 672,999.68
  4. Step 4: Simplify right side
    1,245,959.50x = 1,157,172,394,024.04
  5. Step 5: Solve for x
    x = 1,157,172,394,024.04/1,245,959.50
  6. Step 6: Final answer
    x = 928,739.97

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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.