Home / 1,540,971.72-2,126,425.50-861,777

Finding the Fourth Proportional to 1,540,971.72, 2,126,425.50 and 861,777

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Solution

The fourth proportional to 1,540,971.72, 2,126,425.50 and 861,777 is: 1,189,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,971.72 : 2,126,425.50 = 861,777 : x
  2. Step 2: Convert to fraction form
    1,540,971.72/2,126,425.50 = 861,777/x
  3. Step 3: Cross multiply
    1,540,971.72x = 2,126,425.50 × 861,777
  4. Step 4: Simplify right side
    1,540,971.72x = 1,832,504,588,113.50
  5. Step 5: Solve for x
    x = 1,832,504,588,113.50/1,540,971.72
  6. Step 6: Final answer
    x = 1,189,187.68

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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.