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Finding the Fourth Proportional to 564,910.93, 779,387.32 and 319,862.28

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Solution

The fourth proportional to 564,910.93, 779,387.32 and 319,862.28 is: 441,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,910.93 : 779,387.32 = 319,862.28 : x
  2. Step 2: Convert to fraction form
    564,910.93/779,387.32 = 319,862.28/x
  3. Step 3: Cross multiply
    564,910.93x = 779,387.32 × 319,862.28
  4. Step 4: Simplify right side
    564,910.93x = 249,296,606,701.60
  5. Step 5: Solve for x
    x = 249,296,606,701.60/564,910.93
  6. Step 6: Final answer
    x = 441,302.51

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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.