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Finding the Fourth Proportional to 577,857.11, 797,427.47 and 319,727.33

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Solution

The fourth proportional to 577,857.11, 797,427.47 and 319,727.33 is: 441,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,857.11 : 797,427.47 = 319,727.33 : x
  2. Step 2: Convert to fraction form
    577,857.11/797,427.47 = 319,727.33/x
  3. Step 3: Cross multiply
    577,857.11x = 797,427.47 × 319,727.33
  4. Step 4: Simplify right side
    577,857.11x = 254,959,352,961.91
  5. Step 5: Solve for x
    x = 254,959,352,961.91/577,857.11
  6. Step 6: Final answer
    x = 441,215.22

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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.