Home / 1,390,371.92-2,086,346.82-750,667.13

Finding the Fourth Proportional to 1,390,371.92, 2,086,346.82 and 750,667.13

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Solution

The fourth proportional to 1,390,371.92, 2,086,346.82 and 750,667.13 is: 1,126,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,371.92 : 2,086,346.82 = 750,667.13 : x
  2. Step 2: Convert to fraction form
    1,390,371.92/2,086,346.82 = 750,667.13/x
  3. Step 3: Cross multiply
    1,390,371.92x = 2,086,346.82 × 750,667.13
  4. Step 4: Simplify right side
    1,390,371.92x = 1,566,151,979,554.03
  5. Step 5: Solve for x
    x = 1,566,151,979,554.03/1,390,371.92
  6. Step 6: Final answer
    x = 1,126,426.65

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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.