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Finding the Fourth Proportional to 564,799.56, 779,432.33 and 306,676.36

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Solution

The fourth proportional to 564,799.56, 779,432.33 and 306,676.36 is: 423,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,799.56 : 779,432.33 = 306,676.36 : x
  2. Step 2: Convert to fraction form
    564,799.56/779,432.33 = 306,676.36/x
  3. Step 3: Cross multiply
    564,799.56x = 779,432.33 × 306,676.36
  4. Step 4: Simplify right side
    564,799.56x = 239,033,469,830.72
  5. Step 5: Solve for x
    x = 239,033,469,830.72/564,799.56
  6. Step 6: Final answer
    x = 423,218.23

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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.