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Finding the Fourth Proportional to 648,015.70, 970,711.35 and 367,204.90

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Solution

The fourth proportional to 648,015.70, 970,711.35 and 367,204.90 is: 550,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,015.70 : 970,711.35 = 367,204.90 : x
  2. Step 2: Convert to fraction form
    648,015.70/970,711.35 = 367,204.90/x
  3. Step 3: Cross multiply
    648,015.70x = 970,711.35 × 367,204.90
  4. Step 4: Simplify right side
    648,015.70x = 356,449,964,205.62
  5. Step 5: Solve for x
    x = 356,449,964,205.62/648,015.70
  6. Step 6: Final answer
    x = 550,063.78

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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.