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Finding the Fourth Proportional to 495,893.60, 743,840.40 and 306,504.80

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Solution

The fourth proportional to 495,893.60, 743,840.40 and 306,504.80 is: 459,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,893.60 : 743,840.40 = 306,504.80 : x
  2. Step 2: Convert to fraction form
    495,893.60/743,840.40 = 306,504.80/x
  3. Step 3: Cross multiply
    495,893.60x = 743,840.40 × 306,504.80
  4. Step 4: Simplify right side
    495,893.60x = 227,990,653,033.92
  5. Step 5: Solve for x
    x = 227,990,653,033.92/495,893.60
  6. Step 6: Final answer
    x = 459,757.20

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Similar ratio
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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.