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Finding the Fourth Proportional to 608,906.40, 913,359.60 and 293,395.20

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Solution

The fourth proportional to 608,906.40, 913,359.60 and 293,395.20 is: 440,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,906.40 : 913,359.60 = 293,395.20 : x
  2. Step 2: Convert to fraction form
    608,906.40/913,359.60 = 293,395.20/x
  3. Step 3: Cross multiply
    608,906.40x = 913,359.60 × 293,395.20
  4. Step 4: Simplify right side
    608,906.40x = 267,975,322,513.92
  5. Step 5: Solve for x
    x = 267,975,322,513.92/608,906.40
  6. Step 6: Final answer
    x = 440,092.80

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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.