Home / 1,389,151.11-2,083,726.66-915,725.75

Finding the Fourth Proportional to 1,389,151.11, 2,083,726.66 and 915,725.75

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Solution

The fourth proportional to 1,389,151.11, 2,083,726.66 and 915,725.75 is: 1,373,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,151.11 : 2,083,726.66 = 915,725.75 : x
  2. Step 2: Convert to fraction form
    1,389,151.11/2,083,726.66 = 915,725.75/x
  3. Step 3: Cross multiply
    1,389,151.11x = 2,083,726.66 × 915,725.75
  4. Step 4: Simplify right side
    1,389,151.11x = 1,908,122,158,523.50
  5. Step 5: Solve for x
    x = 1,908,122,158,523.50/1,389,151.11
  6. Step 6: Final answer
    x = 1,373,588.62

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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.