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Finding the Fourth Proportional to 595,560, 821,872.80 and 327,288

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Solution

The fourth proportional to 595,560, 821,872.80 and 327,288 is: 451,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,560 : 821,872.80 = 327,288 : x
  2. Step 2: Convert to fraction form
    595,560/821,872.80 = 327,288/x
  3. Step 3: Cross multiply
    595,560x = 821,872.80 × 327,288
  4. Step 4: Simplify right side
    595,560x = 268,989,104,966.40
  5. Step 5: Solve for x
    x = 268,989,104,966.40/595,560
  6. Step 6: Final answer
    x = 451,657.44

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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.