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Finding the Fourth Proportional to 608,906.15, 840,292.73 and 329,503.38

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Solution

The fourth proportional to 608,906.15, 840,292.73 and 329,503.38 is: 454,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,906.15 : 840,292.73 = 329,503.38 : x
  2. Step 2: Convert to fraction form
    608,906.15/840,292.73 = 329,503.38/x
  3. Step 3: Cross multiply
    608,906.15x = 840,292.73 × 329,503.38
  4. Step 4: Simplify right side
    608,906.15x = 276,879,294,724.43
  5. Step 5: Solve for x
    x = 276,879,294,724.43/608,906.15
  6. Step 6: Final answer
    x = 454,715.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.