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Finding the Fourth Proportional to 451,835.12, 623,544 and 247,894.76

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Solution

The fourth proportional to 451,835.12, 623,544 and 247,894.76 is: 342,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,835.12 : 623,544 = 247,894.76 : x
  2. Step 2: Convert to fraction form
    451,835.12/623,544 = 247,894.76/x
  3. Step 3: Cross multiply
    451,835.12x = 623,544 × 247,894.76
  4. Step 4: Simplify right side
    451,835.12x = 154,573,290,229.44
  5. Step 5: Solve for x
    x = 154,573,290,229.44/451,835.12
  6. Step 6: Final answer
    x = 342,101.10

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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.