Home / 664,366.20-996,986.70-380,056.20

Finding the Fourth Proportional to 664,366.20, 996,986.70 and 380,056.20

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Solution

The fourth proportional to 664,366.20, 996,986.70 and 380,056.20 is: 570,334.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,366.20 : 996,986.70 = 380,056.20 : x
  2. Step 2: Convert to fraction form
    664,366.20/996,986.70 = 380,056.20/x
  3. Step 3: Cross multiply
    664,366.20x = 996,986.70 × 380,056.20
  4. Step 4: Simplify right side
    664,366.20x = 378,910,976,652.54
  5. Step 5: Solve for x
    x = 378,910,976,652.54/664,366.20
  6. Step 6: Final answer
    x = 570,334.52

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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.