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Finding the Fourth Proportional to 682,380.96, 941,687.36 and 380,594.40

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Solution

The fourth proportional to 682,380.96, 941,687.36 and 380,594.40 is: 525,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,380.96 : 941,687.36 = 380,594.40 : x
  2. Step 2: Convert to fraction form
    682,380.96/941,687.36 = 380,594.40/x
  3. Step 3: Cross multiply
    682,380.96x = 941,687.36 × 380,594.40
  4. Step 4: Simplify right side
    682,380.96x = 358,400,935,766.78
  5. Step 5: Solve for x
    x = 358,400,935,766.78/682,380.96
  6. Step 6: Final answer
    x = 525,221.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.