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Finding the Fourth Proportional to 439,478.25, 606,463.14 and 248,495.64

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Solution

The fourth proportional to 439,478.25, 606,463.14 and 248,495.64 is: 342,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,478.25 : 606,463.14 = 248,495.64 : x
  2. Step 2: Convert to fraction form
    439,478.25/606,463.14 = 248,495.64/x
  3. Step 3: Cross multiply
    439,478.25x = 606,463.14 × 248,495.64
  4. Step 4: Simplify right side
    439,478.25x = 150,703,446,110.71
  5. Step 5: Solve for x
    x = 150,703,446,110.71/439,478.25
  6. Step 6: Final answer
    x = 342,914.46

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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.