Home / 868,719.32-1,198,831.86-486,748.83

Finding the Fourth Proportional to 868,719.32, 1,198,831.86 and 486,748.83

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Solution

The fourth proportional to 868,719.32, 1,198,831.86 and 486,748.83 is: 671,712.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,719.32 : 1,198,831.86 = 486,748.83 : x
  2. Step 2: Convert to fraction form
    868,719.32/1,198,831.86 = 486,748.83/x
  3. Step 3: Cross multiply
    868,719.32x = 1,198,831.86 × 486,748.83
  4. Step 4: Simplify right side
    868,719.32x = 583,530,005,221.72
  5. Step 5: Solve for x
    x = 583,530,005,221.72/868,719.32
  6. Step 6: Final answer
    x = 671,712.94

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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.