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Finding the Fourth Proportional to 577,076.75, 796,407.15 and 318,948.14

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Solution

The fourth proportional to 577,076.75, 796,407.15 and 318,948.14 is: 440,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,076.75 : 796,407.15 = 318,948.14 : x
  2. Step 2: Convert to fraction form
    577,076.75/796,407.15 = 318,948.14/x
  3. Step 3: Cross multiply
    577,076.75x = 796,407.15 × 318,948.14
  4. Step 4: Simplify right side
    577,076.75x = 254,012,579,175.20
  5. Step 5: Solve for x
    x = 254,012,579,175.20/577,076.75
  6. Step 6: Final answer
    x = 440,171.22

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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.