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Finding the Fourth Proportional to 417,965.04, 576,759.78 and 245,889.84

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Solution

The fourth proportional to 417,965.04, 576,759.78 and 245,889.84 is: 339,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,965.04 : 576,759.78 = 245,889.84 : x
  2. Step 2: Convert to fraction form
    417,965.04/576,759.78 = 245,889.84/x
  3. Step 3: Cross multiply
    417,965.04x = 576,759.78 × 245,889.84
  4. Step 4: Simplify right side
    417,965.04x = 141,819,370,022.64
  5. Step 5: Solve for x
    x = 141,819,370,022.64/417,965.04
  6. Step 6: Final answer
    x = 339,309.17

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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.