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Finding the Fourth Proportional to 577,862.12, 797,434.38 and 319,732.34

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Solution

The fourth proportional to 577,862.12, 797,434.38 and 319,732.34 is: 441,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,862.12 : 797,434.38 = 319,732.34 : x
  2. Step 2: Convert to fraction form
    577,862.12/797,434.38 = 319,732.34/x
  3. Step 3: Cross multiply
    577,862.12x = 797,434.38 × 319,732.34
  4. Step 4: Simplify right side
    577,862.12x = 254,965,560,313.85
  5. Step 5: Solve for x
    x = 254,965,560,313.85/577,862.12
  6. Step 6: Final answer
    x = 441,222.14

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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.