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Finding the Fourth Proportional to 564,780.26, 779,204.81 and 322,891.58

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Solution

The fourth proportional to 564,780.26, 779,204.81 and 322,891.58 is: 445,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,780.26 : 779,204.81 = 322,891.58 : x
  2. Step 2: Convert to fraction form
    564,780.26/779,204.81 = 322,891.58/x
  3. Step 3: Cross multiply
    564,780.26x = 779,204.81 × 322,891.58
  4. Step 4: Simplify right side
    564,780.26x = 251,598,670,630.04
  5. Step 5: Solve for x
    x = 251,598,670,630.04/564,780.26
  6. Step 6: Final answer
    x = 445,480.64

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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.