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Finding the Fourth Proportional to 482,202.61, 721,885.02 and 321,880.89

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Solution

The fourth proportional to 482,202.61, 721,885.02 and 321,880.89 is: 481,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,202.61 : 721,885.02 = 321,880.89 : x
  2. Step 2: Convert to fraction form
    482,202.61/721,885.02 = 321,880.89/x
  3. Step 3: Cross multiply
    482,202.61x = 721,885.02 × 321,880.89
  4. Step 4: Simplify right side
    482,202.61x = 232,360,990,831.45
  5. Step 5: Solve for x
    x = 232,360,990,831.45/482,202.61
  6. Step 6: Final answer
    x = 481,874.18

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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.