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Finding the Fourth Proportional to 564,968.55, 779,662.23 and 306,850.54

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Solution

The fourth proportional to 564,968.55, 779,662.23 and 306,850.54 is: 423,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,968.55 : 779,662.23 = 306,850.54 : x
  2. Step 2: Convert to fraction form
    564,968.55/779,662.23 = 306,850.54/x
  3. Step 3: Cross multiply
    564,968.55x = 779,662.23 × 306,850.54
  4. Step 4: Simplify right side
    564,968.55x = 239,239,776,293.10
  5. Step 5: Solve for x
    x = 239,239,776,293.10/564,968.55
  6. Step 6: Final answer
    x = 423,456.80

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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.