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Finding the Fourth Proportional to 439,564.82, 606,612.66 and 248,574.38

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Solution

The fourth proportional to 439,564.82, 606,612.66 and 248,574.38 is: 343,040.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,564.82 : 606,612.66 = 248,574.38 : x
  2. Step 2: Convert to fraction form
    439,564.82/606,612.66 = 248,574.38/x
  3. Step 3: Cross multiply
    439,564.82x = 606,612.66 × 248,574.38
  4. Step 4: Simplify right side
    439,564.82x = 150,788,365,859.65
  5. Step 5: Solve for x
    x = 150,788,365,859.65/439,564.82
  6. Step 6: Final answer
    x = 343,040.11

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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.