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Finding the Fourth Proportional to 572,670.32, 858,735.75 and 212,591.71

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Solution

The fourth proportional to 572,670.32, 858,735.75 and 212,591.71 is: 318,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,670.32 : 858,735.75 = 212,591.71 : x
  2. Step 2: Convert to fraction form
    572,670.32/858,735.75 = 212,591.71/x
  3. Step 3: Cross multiply
    572,670.32x = 858,735.75 × 212,591.71
  4. Step 4: Simplify right side
    572,670.32x = 182,560,097,236.95
  5. Step 5: Solve for x
    x = 182,560,097,236.95/572,670.32
  6. Step 6: Final answer
    x = 318,787.43

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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.