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Finding the Fourth Proportional to 439,752, 606,906.36 and 248,763.72

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Solution

The fourth proportional to 439,752, 606,906.36 and 248,763.72 is: 343,321.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,752 : 606,906.36 = 248,763.72 : x
  2. Step 2: Convert to fraction form
    439,752/606,906.36 = 248,763.72/x
  3. Step 3: Cross multiply
    439,752x = 606,906.36 × 248,763.72
  4. Step 4: Simplify right side
    439,752x = 150,976,283,805.26
  5. Step 5: Solve for x
    x = 150,976,283,805.26/439,752
  6. Step 6: Final answer
    x = 343,321.43

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1.5x scale

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.