Home / 861,614.73-1,189,187.77-499,038.49

Finding the Fourth Proportional to 861,614.73, 1,189,187.77 and 499,038.49

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Solution

The fourth proportional to 861,614.73, 1,189,187.77 and 499,038.49 is: 688,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,614.73 : 1,189,187.77 = 499,038.49 : x
  2. Step 2: Convert to fraction form
    861,614.73/1,189,187.77 = 499,038.49/x
  3. Step 3: Cross multiply
    861,614.73x = 1,189,187.77 × 499,038.49
  4. Step 4: Simplify right side
    861,614.73x = 593,450,469,067.27
  5. Step 5: Solve for x
    x = 593,450,469,067.27/861,614.73
  6. Step 6: Final answer
    x = 688,765.46

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1.5x scale

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.