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Finding the Fourth Proportional to 577,283.83, 796,617.36 and 319,145.31

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Solution

The fourth proportional to 577,283.83, 796,617.36 and 319,145.31 is: 440,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,283.83 : 796,617.36 = 319,145.31 : x
  2. Step 2: Convert to fraction form
    577,283.83/796,617.36 = 319,145.31/x
  3. Step 3: Cross multiply
    577,283.83x = 796,617.36 × 319,145.31
  4. Step 4: Simplify right side
    577,283.83x = 254,236,694,308.58
  5. Step 5: Solve for x
    x = 254,236,694,308.58/577,283.83
  6. Step 6: Final answer
    x = 440,401.55

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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.