Home / 439,032.72-658,418.40-186,309.12

Finding the Fourth Proportional to 439,032.72, 658,418.40 and 186,309.12

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Solution

The fourth proportional to 439,032.72, 658,418.40 and 186,309.12 is: 279,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,032.72 : 658,418.40 = 186,309.12 : x
  2. Step 2: Convert to fraction form
    439,032.72/658,418.40 = 186,309.12/x
  3. Step 3: Cross multiply
    439,032.72x = 658,418.40 × 186,309.12
  4. Step 4: Simplify right side
    439,032.72x = 122,669,352,695.81
  5. Step 5: Solve for x
    x = 122,669,352,695.81/439,032.72
  6. Step 6: Final answer
    x = 279,408.22

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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.