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Finding the Fourth Proportional to 501,694.20, 752,221.06 and 330,718.59

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Solution

The fourth proportional to 501,694.20, 752,221.06 and 330,718.59 is: 495,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,694.20 : 752,221.06 = 330,718.59 : x
  2. Step 2: Convert to fraction form
    501,694.20/752,221.06 = 330,718.59/x
  3. Step 3: Cross multiply
    501,694.20x = 752,221.06 × 330,718.59
  4. Step 4: Simplify right side
    501,694.20x = 248,773,488,331.51
  5. Step 5: Solve for x
    x = 248,773,488,331.51/501,694.20
  6. Step 6: Final answer
    x = 495,866.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.