Home / 518,339.27-777,456.33-139,210.73

Finding the Fourth Proportional to 518,339.27, 777,456.33 and 139,210.73

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Solution

The fourth proportional to 518,339.27, 777,456.33 and 139,210.73 is: 208,801.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,339.27 : 777,456.33 = 139,210.73 : x
  2. Step 2: Convert to fraction form
    518,339.27/777,456.33 = 139,210.73/x
  3. Step 3: Cross multiply
    518,339.27x = 777,456.33 × 139,210.73
  4. Step 4: Simplify right side
    518,339.27x = 108,230,263,242.42
  5. Step 5: Solve for x
    x = 108,230,263,242.42/518,339.27
  6. Step 6: Final answer
    x = 208,801.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.