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Finding the Fourth Proportional to 483,685, 725,543.74 and 217,446.28

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Solution

The fourth proportional to 483,685, 725,543.74 and 217,446.28 is: 326,176.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,685 : 725,543.74 = 217,446.28 : x
  2. Step 2: Convert to fraction form
    483,685/725,543.74 = 217,446.28/x
  3. Step 3: Cross multiply
    483,685x = 725,543.74 × 217,446.28
  4. Step 4: Simplify right side
    483,685x = 157,766,787,240.29
  5. Step 5: Solve for x
    x = 157,766,787,240.29/483,685
  6. Step 6: Final answer
    x = 326,176.72

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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.