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Finding the Fourth Proportional to 537,906.60, 806,859.90 and 313,520.40

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Solution

The fourth proportional to 537,906.60, 806,859.90 and 313,520.40 is: 470,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,906.60 : 806,859.90 = 313,520.40 : x
  2. Step 2: Convert to fraction form
    537,906.60/806,859.90 = 313,520.40/x
  3. Step 3: Cross multiply
    537,906.60x = 806,859.90 × 313,520.40
  4. Step 4: Simplify right side
    537,906.60x = 252,967,038,591.96
  5. Step 5: Solve for x
    x = 252,967,038,591.96/537,906.60
  6. Step 6: Final answer
    x = 470,280.60

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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.