Home / 861,863.22-1,189,190.16-499,265.37

Finding the Fourth Proportional to 861,863.22, 1,189,190.16 and 499,265.37

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Solution

The fourth proportional to 861,863.22, 1,189,190.16 and 499,265.37 is: 688,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,863.22 : 1,189,190.16 = 499,265.37 : x
  2. Step 2: Convert to fraction form
    861,863.22/1,189,190.16 = 499,265.37/x
  3. Step 3: Cross multiply
    861,863.22x = 1,189,190.16 × 499,265.37
  4. Step 4: Simplify right side
    861,863.22x = 593,721,465,232.76
  5. Step 5: Solve for x
    x = 593,721,465,232.76/861,863.22
  6. Step 6: Final answer
    x = 688,881.31

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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.