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Finding the Fourth Proportional to 495,909.60, 743,864.40 and 296,455.20

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Solution

The fourth proportional to 495,909.60, 743,864.40 and 296,455.20 is: 444,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,909.60 : 743,864.40 = 296,455.20 : x
  2. Step 2: Convert to fraction form
    495,909.60/743,864.40 = 296,455.20/x
  3. Step 3: Cross multiply
    495,909.60x = 743,864.40 × 296,455.20
  4. Step 4: Simplify right side
    495,909.60x = 220,522,469,474.88
  5. Step 5: Solve for x
    x = 220,522,469,474.88/495,909.60
  6. Step 6: Final answer
    x = 444,682.80

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1.5x scale

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.