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Finding the Fourth Proportional to 564,661.94, 779,234.78 and 310,029.53

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Solution

The fourth proportional to 564,661.94, 779,234.78 and 310,029.53 is: 427,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,661.94 : 779,234.78 = 310,029.53 : x
  2. Step 2: Convert to fraction form
    564,661.94/779,234.78 = 310,029.53/x
  3. Step 3: Cross multiply
    564,661.94x = 779,234.78 × 310,029.53
  4. Step 4: Simplify right side
    564,661.94x = 241,585,789,481.95
  5. Step 5: Solve for x
    x = 241,585,789,481.95/564,661.94
  6. Step 6: Final answer
    x = 427,841.46

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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.