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Finding the Fourth Proportional to 443,689.44, 612,323.46 and 252,702.78

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Solution

The fourth proportional to 443,689.44, 612,323.46 and 252,702.78 is: 348,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,689.44 : 612,323.46 = 252,702.78 : x
  2. Step 2: Convert to fraction form
    443,689.44/612,323.46 = 252,702.78/x
  3. Step 3: Cross multiply
    443,689.44x = 612,323.46 × 252,702.78
  4. Step 4: Simplify right side
    443,689.44x = 154,735,840,601.22
  5. Step 5: Solve for x
    x = 154,735,840,601.22/443,689.44
  6. Step 6: Final answer
    x = 348,748.08

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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.