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Finding the Fourth Proportional to 508,906.40, 763,359.60 and 482,662.40

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Solution

The fourth proportional to 508,906.40, 763,359.60 and 482,662.40 is: 723,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,906.40 : 763,359.60 = 482,662.40 : x
  2. Step 2: Convert to fraction form
    508,906.40/763,359.60 = 482,662.40/x
  3. Step 3: Cross multiply
    508,906.40x = 763,359.60 × 482,662.40
  4. Step 4: Simplify right side
    508,906.40x = 368,444,976,599.04
  5. Step 5: Solve for x
    x = 368,444,976,599.04/508,906.40
  6. Step 6: Final answer
    x = 723,993.60

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Double scale
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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.