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Finding the Fourth Proportional to 566,787.60, 848,213.10 and 389,640.60

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Solution

The fourth proportional to 566,787.60, 848,213.10 and 389,640.60 is: 583,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,787.60 : 848,213.10 = 389,640.60 : x
  2. Step 2: Convert to fraction form
    566,787.60/848,213.10 = 389,640.60/x
  3. Step 3: Cross multiply
    566,787.60x = 848,213.10 × 389,640.60
  4. Step 4: Simplify right side
    566,787.60x = 330,498,261,211.86
  5. Step 5: Solve for x
    x = 330,498,261,211.86/566,787.60
  6. Step 6: Final answer
    x = 583,107.78

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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.