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Finding the Fourth Proportional to 852,297.67, 1,278,114.27 and 319,528

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Solution

The fourth proportional to 852,297.67, 1,278,114.27 and 319,528 is: 479,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,297.67 : 1,278,114.27 = 319,528 : x
  2. Step 2: Convert to fraction form
    852,297.67/1,278,114.27 = 319,528/x
  3. Step 3: Cross multiply
    852,297.67x = 1,278,114.27 × 319,528
  4. Step 4: Simplify right side
    852,297.67x = 408,393,296,464.56
  5. Step 5: Solve for x
    x = 408,393,296,464.56/852,297.67
  6. Step 6: Final answer
    x = 479,167.44

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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.