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Finding the Fourth Proportional to 439,648.08, 606,805 and 248,669.52

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Solution

The fourth proportional to 439,648.08, 606,805 and 248,669.52 is: 343,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,648.08 : 606,805 = 248,669.52 : x
  2. Step 2: Convert to fraction form
    439,648.08/606,805 = 248,669.52/x
  3. Step 3: Cross multiply
    439,648.08x = 606,805 × 248,669.52
  4. Step 4: Simplify right side
    439,648.08x = 150,893,908,083.60
  5. Step 5: Solve for x
    x = 150,893,908,083.60/439,648.08
  6. Step 6: Final answer
    x = 343,215.21

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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.