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Finding the Fourth Proportional to 577,080.87, 796,412.81 and 318,952.29

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Solution

The fourth proportional to 577,080.87, 796,412.81 and 318,952.29 is: 440,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,080.87 : 796,412.81 = 318,952.29 : x
  2. Step 2: Convert to fraction form
    577,080.87/796,412.81 = 318,952.29/x
  3. Step 3: Cross multiply
    577,080.87x = 796,412.81 × 318,952.29
  4. Step 4: Simplify right side
    577,080.87x = 254,017,687,940.07
  5. Step 5: Solve for x
    x = 254,017,687,940.07/577,080.87
  6. Step 6: Final answer
    x = 440,176.93

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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.