Home / 1,245,633.40-1,718,974.06-672,673.55

Finding the Fourth Proportional to 1,245,633.40, 1,718,974.06 and 672,673.55

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Solution

The fourth proportional to 1,245,633.40, 1,718,974.06 and 672,673.55 is: 928,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,633.40 : 1,718,974.06 = 672,673.55 : x
  2. Step 2: Convert to fraction form
    1,245,633.40/1,718,974.06 = 672,673.55/x
  3. Step 3: Cross multiply
    1,245,633.40x = 1,718,974.06 × 672,673.55
  4. Step 4: Simplify right side
    1,245,633.40x = 1,156,308,383,298.11
  5. Step 5: Solve for x
    x = 1,156,308,383,298.11/1,245,633.40
  6. Step 6: Final answer
    x = 928,289.48

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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.