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Finding the Fourth Proportional to 543,253.76, 815,680.35 and 303,836.72

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Solution

The fourth proportional to 543,253.76, 815,680.35 and 303,836.72 is: 456,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,253.76 : 815,680.35 = 303,836.72 : x
  2. Step 2: Convert to fraction form
    543,253.76/815,680.35 = 303,836.72/x
  3. Step 3: Cross multiply
    543,253.76x = 815,680.35 × 303,836.72
  4. Step 4: Simplify right side
    543,253.76x = 247,833,642,112.45
  5. Step 5: Solve for x
    x = 247,833,642,112.45/543,253.76
  6. Step 6: Final answer
    x = 456,202.35

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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.