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Finding the Fourth Proportional to 577,084.36, 796,417.62 and 318,955.78

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Solution

The fourth proportional to 577,084.36, 796,417.62 and 318,955.78 is: 440,181.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,084.36 : 796,417.62 = 318,955.78 : x
  2. Step 2: Convert to fraction form
    577,084.36/796,417.62 = 318,955.78/x
  3. Step 3: Cross multiply
    577,084.36x = 796,417.62 × 318,955.78
  4. Step 4: Simplify right side
    577,084.36x = 254,022,003,192.84
  5. Step 5: Solve for x
    x = 254,022,003,192.84/577,084.36
  6. Step 6: Final answer
    x = 440,181.75

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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.