Home / 587,129.28-809,960.22-396,204.24

Finding the Fourth Proportional to 587,129.28, 809,960.22 and 396,204.24

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Solution

The fourth proportional to 587,129.28, 809,960.22 and 396,204.24 is: 546,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,129.28 : 809,960.22 = 396,204.24 : x
  2. Step 2: Convert to fraction form
    587,129.28/809,960.22 = 396,204.24/x
  3. Step 3: Cross multiply
    587,129.28x = 809,960.22 × 396,204.24
  4. Step 4: Simplify right side
    587,129.28x = 320,909,673,395.33
  5. Step 5: Solve for x
    x = 320,909,673,395.33/587,129.28
  6. Step 6: Final answer
    x = 546,574.13

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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.