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Finding the Fourth Proportional to 439,443, 606,496.08 and 278,313

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Solution

The fourth proportional to 439,443, 606,496.08 and 278,313 is: 384,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,443 : 606,496.08 = 278,313 : x
  2. Step 2: Convert to fraction form
    439,443/606,496.08 = 278,313/x
  3. Step 3: Cross multiply
    439,443x = 606,496.08 × 278,313
  4. Step 4: Simplify right side
    439,443x = 168,795,743,513.04
  5. Step 5: Solve for x
    x = 168,795,743,513.04/439,443
  6. Step 6: Final answer
    x = 384,112.94

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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.