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Finding the Fourth Proportional to 495,425.60, 743,138.40 and 295,971.20

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Solution

The fourth proportional to 495,425.60, 743,138.40 and 295,971.20 is: 443,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,425.60 : 743,138.40 = 295,971.20 : x
  2. Step 2: Convert to fraction form
    495,425.60/743,138.40 = 295,971.20/x
  3. Step 3: Cross multiply
    495,425.60x = 743,138.40 × 295,971.20
  4. Step 4: Simplify right side
    495,425.60x = 219,947,564,014.08
  5. Step 5: Solve for x
    x = 219,947,564,014.08/495,425.60
  6. Step 6: Final answer
    x = 443,956.80

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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.