Home / 861,661.74-1,189,054.85-493,875.22

Finding the Fourth Proportional to 861,661.74, 1,189,054.85 and 493,875.22

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Solution

The fourth proportional to 861,661.74, 1,189,054.85 and 493,875.22 is: 681,525.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,661.74 : 1,189,054.85 = 493,875.22 : x
  2. Step 2: Convert to fraction form
    861,661.74/1,189,054.85 = 493,875.22/x
  3. Step 3: Cross multiply
    861,661.74x = 1,189,054.85 × 493,875.22
  4. Step 4: Simplify right side
    861,661.74x = 587,244,725,635.82
  5. Step 5: Solve for x
    x = 587,244,725,635.82/861,661.74
  6. Step 6: Final answer
    x = 681,525.82

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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.