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Finding the Fourth Proportional to 348,600.20, 522,122.70 and 286,392.20

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Solution

The fourth proportional to 348,600.20, 522,122.70 and 286,392.20 is: 428,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,600.20 : 522,122.70 = 286,392.20 : x
  2. Step 2: Convert to fraction form
    348,600.20/522,122.70 = 286,392.20/x
  3. Step 3: Cross multiply
    348,600.20x = 522,122.70 × 286,392.20
  4. Step 4: Simplify right side
    348,600.20x = 149,531,868,722.94
  5. Step 5: Solve for x
    x = 149,531,868,722.94/348,600.20
  6. Step 6: Final answer
    x = 428,949.46

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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.