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Finding the Fourth Proportional to 520,620.53, 780,790.67 and 183,617.44

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Solution

The fourth proportional to 520,620.53, 780,790.67 and 183,617.44 is: 275,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,620.53 : 780,790.67 = 183,617.44 : x
  2. Step 2: Convert to fraction form
    520,620.53/780,790.67 = 183,617.44/x
  3. Step 3: Cross multiply
    520,620.53x = 780,790.67 × 183,617.44
  4. Step 4: Simplify right side
    520,620.53x = 143,366,786,793.30
  5. Step 5: Solve for x
    x = 143,366,786,793.30/520,620.53
  6. Step 6: Final answer
    x = 275,376.74

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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.