Home / 815,786.51-1,217,691.58-755,667.24

Finding the Fourth Proportional to 815,786.51, 1,217,691.58 and 755,667.24

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Solution

The fourth proportional to 815,786.51, 1,217,691.58 and 755,667.24 is: 1,127,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,786.51 : 1,217,691.58 = 755,667.24 : x
  2. Step 2: Convert to fraction form
    815,786.51/1,217,691.58 = 755,667.24/x
  3. Step 3: Cross multiply
    815,786.51x = 1,217,691.58 × 755,667.24
  4. Step 4: Simplify right side
    815,786.51x = 920,169,635,429.84
  5. Step 5: Solve for x
    x = 920,169,635,429.84/815,786.51
  6. Step 6: Final answer
    x = 1,127,953.97

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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.