Home / 1,217,789.65-1,680,508.20-673,948.36

Finding the Fourth Proportional to 1,217,789.65, 1,680,508.20 and 673,948.36

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Solution

The fourth proportional to 1,217,789.65, 1,680,508.20 and 673,948.36 is: 930,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,789.65 : 1,680,508.20 = 673,948.36 : x
  2. Step 2: Convert to fraction form
    1,217,789.65/1,680,508.20 = 673,948.36/x
  3. Step 3: Cross multiply
    1,217,789.65x = 1,680,508.20 × 673,948.36
  4. Step 4: Simplify right side
    1,217,789.65x = 1,132,575,745,356.55
  5. Step 5: Solve for x
    x = 1,132,575,745,356.55/1,217,789.65
  6. Step 6: Final answer
    x = 930,025.76

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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.