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Finding the Fourth Proportional to 564,932.88, 779,417.62 and 319,884.26

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Solution

The fourth proportional to 564,932.88, 779,417.62 and 319,884.26 is: 441,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,932.88 : 779,417.62 = 319,884.26 : x
  2. Step 2: Convert to fraction form
    564,932.88/779,417.62 = 319,884.26/x
  3. Step 3: Cross multiply
    564,932.88x = 779,417.62 × 319,884.26
  4. Step 4: Simplify right side
    564,932.88x = 249,323,428,604.66
  5. Step 5: Solve for x
    x = 249,323,428,604.66/564,932.88
  6. Step 6: Final answer
    x = 441,332.83

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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.