Home / 1,540,973.22-2,126,427.57-861,778.50

Finding the Fourth Proportional to 1,540,973.22, 2,126,427.57 and 861,778.50

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Solution

The fourth proportional to 1,540,973.22, 2,126,427.57 and 861,778.50 is: 1,189,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,973.22 : 2,126,427.57 = 861,778.50 : x
  2. Step 2: Convert to fraction form
    1,540,973.22/2,126,427.57 = 861,778.50/x
  3. Step 3: Cross multiply
    1,540,973.22x = 2,126,427.57 × 861,778.50
  4. Step 4: Simplify right side
    1,540,973.22x = 1,832,509,561,633.25
  5. Step 5: Solve for x
    x = 1,832,509,561,633.25/1,540,973.22
  6. Step 6: Final answer
    x = 1,189,189.75

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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.