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Finding the Fourth Proportional to 564,780.51, 779,205.15 and 322,891.83

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Solution

The fourth proportional to 564,780.51, 779,205.15 and 322,891.83 is: 445,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,780.51 : 779,205.15 = 322,891.83 : x
  2. Step 2: Convert to fraction form
    564,780.51/779,205.15 = 322,891.83/x
  3. Step 3: Cross multiply
    564,780.51x = 779,205.15 × 322,891.83
  4. Step 4: Simplify right side
    564,780.51x = 251,598,976,828.93
  5. Step 5: Solve for x
    x = 251,598,976,828.93/564,780.51
  6. Step 6: Final answer
    x = 445,480.98

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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.