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Finding the Fourth Proportional to 577,081.87, 796,414.19 and 318,953.29

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Solution

The fourth proportional to 577,081.87, 796,414.19 and 318,953.29 is: 440,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,081.87 : 796,414.19 = 318,953.29 : x
  2. Step 2: Convert to fraction form
    577,081.87/796,414.19 = 318,953.29/x
  3. Step 3: Cross multiply
    577,081.87x = 796,414.19 × 318,953.29
  4. Step 4: Simplify right side
    577,081.87x = 254,018,926,103.19
  5. Step 5: Solve for x
    x = 254,018,926,103.19/577,081.87
  6. Step 6: Final answer
    x = 440,178.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.