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Finding the Fourth Proportional to 564,500.22, 779,003.68 and 306,377.61

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Solution

The fourth proportional to 564,500.22, 779,003.68 and 306,377.61 is: 422,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,500.22 : 779,003.68 = 306,377.61 : x
  2. Step 2: Convert to fraction form
    564,500.22/779,003.68 = 306,377.61/x
  3. Step 3: Cross multiply
    564,500.22x = 779,003.68 × 306,377.61
  4. Step 4: Simplify right side
    564,500.22x = 238,669,285,659.61
  5. Step 5: Solve for x
    x = 238,669,285,659.61/564,500.22
  6. Step 6: Final answer
    x = 422,797.51

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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.