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Finding the Fourth Proportional to 520,950.68, 781,566.30 and 268,093.38

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Solution

The fourth proportional to 520,950.68, 781,566.30 and 268,093.38 is: 402,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,950.68 : 781,566.30 = 268,093.38 : x
  2. Step 2: Convert to fraction form
    520,950.68/781,566.30 = 268,093.38/x
  3. Step 3: Cross multiply
    520,950.68x = 781,566.30 × 268,093.38
  4. Step 4: Simplify right side
    520,950.68x = 209,532,751,061.09
  5. Step 5: Solve for x
    x = 209,532,751,061.09/520,950.68
  6. Step 6: Final answer
    x = 402,212.26

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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.