Home / 815,786.63-1,217,691.77-755,667.37

Finding the Fourth Proportional to 815,786.63, 1,217,691.77 and 755,667.37

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Solution

The fourth proportional to 815,786.63, 1,217,691.77 and 755,667.37 is: 1,127,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,786.63 : 1,217,691.77 = 755,667.37 : x
  2. Step 2: Convert to fraction form
    815,786.63/1,217,691.77 = 755,667.37/x
  3. Step 3: Cross multiply
    815,786.63x = 1,217,691.77 × 755,667.37
  4. Step 4: Simplify right side
    815,786.63x = 920,169,937,306.55
  5. Step 5: Solve for x
    x = 920,169,937,306.55/815,786.63
  6. Step 6: Final answer
    x = 1,127,954.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.