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Finding the Fourth Proportional to 412,545.60, 618,818.40 and 329,601.60

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Solution

The fourth proportional to 412,545.60, 618,818.40 and 329,601.60 is: 494,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,545.60 : 618,818.40 = 329,601.60 : x
  2. Step 2: Convert to fraction form
    412,545.60/618,818.40 = 329,601.60/x
  3. Step 3: Cross multiply
    412,545.60x = 618,818.40 × 329,601.60
  4. Step 4: Simplify right side
    412,545.60x = 203,963,534,749.44
  5. Step 5: Solve for x
    x = 203,963,534,749.44/412,545.60
  6. Step 6: Final answer
    x = 494,402.40

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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.