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Finding the Fourth Proportional to 348,524.80, 522,787.20 and 345,900.40

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Solution

The fourth proportional to 348,524.80, 522,787.20 and 345,900.40 is: 518,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,524.80 : 522,787.20 = 345,900.40 : x
  2. Step 2: Convert to fraction form
    348,524.80/522,787.20 = 345,900.40/x
  3. Step 3: Cross multiply
    348,524.80x = 522,787.20 × 345,900.40
  4. Step 4: Simplify right side
    348,524.80x = 180,832,301,594.88
  5. Step 5: Solve for x
    x = 180,832,301,594.88/348,524.80
  6. Step 6: Final answer
    x = 518,850.60

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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.