Home / 812,133.11-1,217,789.49-475,274.97

Finding the Fourth Proportional to 812,133.11, 1,217,789.49 and 475,274.97

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Solution

The fourth proportional to 812,133.11, 1,217,789.49 and 475,274.97 is: 712,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,133.11 : 1,217,789.49 = 475,274.97 : x
  2. Step 2: Convert to fraction form
    812,133.11/1,217,789.49 = 475,274.97/x
  3. Step 3: Cross multiply
    812,133.11x = 1,217,789.49 × 475,274.97
  4. Step 4: Simplify right side
    812,133.11x = 578,784,859,009.89
  5. Step 5: Solve for x
    x = 578,784,859,009.89/812,133.11
  6. Step 6: Final answer
    x = 712,672.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.