Home / 1,540,701.52-2,126,160.84-861,640.72

Finding the Fourth Proportional to 1,540,701.52, 2,126,160.84 and 861,640.72

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Solution

The fourth proportional to 1,540,701.52, 2,126,160.84 and 861,640.72 is: 1,189,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,701.52 : 2,126,160.84 = 861,640.72 : x
  2. Step 2: Convert to fraction form
    1,540,701.52/2,126,160.84 = 861,640.72/x
  3. Step 3: Cross multiply
    1,540,701.52x = 2,126,160.84 × 861,640.72
  4. Step 4: Simplify right side
    1,540,701.52x = 1,831,986,757,013.40
  5. Step 5: Solve for x
    x = 1,831,986,757,013.40/1,540,701.52
  6. Step 6: Final answer
    x = 1,189,060.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.