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Finding the Fourth Proportional to 400,505.96, 600,682.39 and 120,023.21

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Solution

The fourth proportional to 400,505.96, 600,682.39 and 120,023.21 is: 180,011.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,505.96 : 600,682.39 = 120,023.21 : x
  2. Step 2: Convert to fraction form
    400,505.96/600,682.39 = 120,023.21/x
  3. Step 3: Cross multiply
    400,505.96x = 600,682.39 × 120,023.21
  4. Step 4: Simplify right side
    400,505.96x = 72,095,829,839.92
  5. Step 5: Solve for x
    x = 72,095,829,839.92/400,505.96
  6. Step 6: Final answer
    x = 180,011.88

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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.