Home / 1,217,265.85-1,679,876.40-673,392.31

Finding the Fourth Proportional to 1,217,265.85, 1,679,876.40 and 673,392.31

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Solution

The fourth proportional to 1,217,265.85, 1,679,876.40 and 673,392.31 is: 929,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,265.85 : 1,679,876.40 = 673,392.31 : x
  2. Step 2: Convert to fraction form
    1,217,265.85/1,679,876.40 = 673,392.31/x
  3. Step 3: Cross multiply
    1,217,265.85x = 1,679,876.40 × 673,392.31
  4. Step 4: Simplify right side
    1,217,265.85x = 1,131,215,849,510.48
  5. Step 5: Solve for x
    x = 1,131,215,849,510.48/1,217,265.85
  6. Step 6: Final answer
    x = 929,308.79

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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.