Home / 1,540,704.52-2,126,164.98-861,643.72

Finding the Fourth Proportional to 1,540,704.52, 2,126,164.98 and 861,643.72

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Solution

The fourth proportional to 1,540,704.52, 2,126,164.98 and 861,643.72 is: 1,189,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,704.52 : 2,126,164.98 = 861,643.72 : x
  2. Step 2: Convert to fraction form
    1,540,704.52/2,126,164.98 = 861,643.72/x
  3. Step 3: Cross multiply
    1,540,704.52x = 2,126,164.98 × 861,643.72
  4. Step 4: Simplify right side
    1,540,704.52x = 1,831,996,702,700.93
  5. Step 5: Solve for x
    x = 1,831,996,702,700.93/1,540,704.52
  6. Step 6: Final answer
    x = 1,189,064.27

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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.