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Finding the Fourth Proportional to 564,635.94, 779,198.90 and 310,003.53

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Solution

The fourth proportional to 564,635.94, 779,198.90 and 310,003.53 is: 427,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,635.94 : 779,198.90 = 310,003.53 : x
  2. Step 2: Convert to fraction form
    564,635.94/779,198.90 = 310,003.53/x
  3. Step 3: Cross multiply
    564,635.94x = 779,198.90 × 310,003.53
  4. Step 4: Simplify right side
    564,635.94x = 241,554,409,572.12
  5. Step 5: Solve for x
    x = 241,554,409,572.12/564,635.94
  6. Step 6: Final answer
    x = 427,805.59

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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.