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Finding the Fourth Proportional to 520,096.65, 780,147.41 and 220,501.95

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Solution

The fourth proportional to 520,096.65, 780,147.41 and 220,501.95 is: 330,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,096.65 : 780,147.41 = 220,501.95 : x
  2. Step 2: Convert to fraction form
    520,096.65/780,147.41 = 220,501.95/x
  3. Step 3: Cross multiply
    520,096.65x = 780,147.41 × 220,501.95
  4. Step 4: Simplify right side
    520,096.65x = 172,024,024,089.94
  5. Step 5: Solve for x
    x = 172,024,024,089.94/520,096.65
  6. Step 6: Final answer
    x = 330,753.96

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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.