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Finding the Fourth Proportional to 564,896.11, 779,562.75 and 310,247.26

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Solution

The fourth proportional to 564,896.11, 779,562.75 and 310,247.26 is: 428,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,896.11 : 779,562.75 = 310,247.26 : x
  2. Step 2: Convert to fraction form
    564,896.11/779,562.75 = 310,247.26/x
  3. Step 3: Cross multiply
    564,896.11x = 779,562.75 × 310,247.26
  4. Step 4: Simplify right side
    564,896.11x = 241,857,207,185.57
  5. Step 5: Solve for x
    x = 241,857,207,185.57/564,896.11
  6. Step 6: Final answer
    x = 428,144.58

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1.5x scale

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.