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Finding the Fourth Proportional to 564,639.36, 779,189.22 and 322,907.51

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Solution

The fourth proportional to 564,639.36, 779,189.22 and 322,907.51 is: 445,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,639.36 : 779,189.22 = 322,907.51 : x
  2. Step 2: Convert to fraction form
    564,639.36/779,189.22 = 322,907.51/x
  3. Step 3: Cross multiply
    564,639.36x = 779,189.22 × 322,907.51
  4. Step 4: Simplify right side
    564,639.36x = 251,606,052,797.02
  5. Step 5: Solve for x
    x = 251,606,052,797.02/564,639.36
  6. Step 6: Final answer
    x = 445,604.88

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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.