Home / 1,217,266.38-1,679,877-673,392.78

Finding the Fourth Proportional to 1,217,266.38, 1,679,877 and 673,392.78

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Solution

The fourth proportional to 1,217,266.38, 1,679,877 and 673,392.78 is: 929,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,266.38 : 1,679,877 = 673,392.78 : x
  2. Step 2: Convert to fraction form
    1,217,266.38/1,679,877 = 673,392.78/x
  3. Step 3: Cross multiply
    1,217,266.38x = 1,679,877 × 673,392.78
  4. Step 4: Simplify right side
    1,217,266.38x = 1,131,217,043,088.06
  5. Step 5: Solve for x
    x = 1,131,217,043,088.06/1,217,266.38
  6. Step 6: Final answer
    x = 929,309.36

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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.