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Finding the Fourth Proportional to 564,866.98, 779,515.46 and 310,218.16

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Solution

The fourth proportional to 564,866.98, 779,515.46 and 310,218.16 is: 428,100.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,866.98 : 779,515.46 = 310,218.16 : x
  2. Step 2: Convert to fraction form
    564,866.98/779,515.46 = 310,218.16/x
  3. Step 3: Cross multiply
    564,866.98x = 779,515.46 × 310,218.16
  4. Step 4: Simplify right side
    564,866.98x = 241,819,850,141.66
  5. Step 5: Solve for x
    x = 241,819,850,141.66/564,866.98
  6. Step 6: Final answer
    x = 428,100.53

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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.