Home / 665,066.60-996,943.80-327,831.20

Finding the Fourth Proportional to 665,066.60, 996,943.80 and 327,831.20

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Solution

The fourth proportional to 665,066.60, 996,943.80 and 327,831.20 is: 491,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,066.60 : 996,943.80 = 327,831.20 : x
  2. Step 2: Convert to fraction form
    665,066.60/996,943.80 = 327,831.20/x
  3. Step 3: Cross multiply
    665,066.60x = 996,943.80 × 327,831.20
  4. Step 4: Simplify right side
    665,066.60x = 326,829,282,286.56
  5. Step 5: Solve for x
    x = 326,829,282,286.56/665,066.60
  6. Step 6: Final answer
    x = 491,423.39

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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.