Home / 862,270.92-1,189,970.56-480,297.88

Finding the Fourth Proportional to 862,270.92, 1,189,970.56 and 480,297.88

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Solution

The fourth proportional to 862,270.92, 1,189,970.56 and 480,297.88 is: 662,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,270.92 : 1,189,970.56 = 480,297.88 : x
  2. Step 2: Convert to fraction form
    862,270.92/1,189,970.56 = 480,297.88/x
  3. Step 3: Cross multiply
    862,270.92x = 1,189,970.56 × 480,297.88
  4. Step 4: Simplify right side
    862,270.92x = 571,540,337,230.41
  5. Step 5: Solve for x
    x = 571,540,337,230.41/862,270.92
  6. Step 6: Final answer
    x = 662,831.51

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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.