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Finding the Fourth Proportional to 620,078.72, 929,644.99 and 282,883.56

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Solution

The fourth proportional to 620,078.72, 929,644.99 and 282,883.56 is: 424,109.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,078.72 : 929,644.99 = 282,883.56 : x
  2. Step 2: Convert to fraction form
    620,078.72/929,644.99 = 282,883.56/x
  3. Step 3: Cross multiply
    620,078.72x = 929,644.99 × 282,883.56
  4. Step 4: Simplify right side
    620,078.72x = 262,981,281,383.33
  5. Step 5: Solve for x
    x = 262,981,281,383.33/620,078.72
  6. Step 6: Final answer
    x = 424,109.51

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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.