Home / 379,646.39-523,922.97-209,891.45

Finding the Fourth Proportional to 379,646.39, 523,922.97 and 209,891.45

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Solution

The fourth proportional to 379,646.39, 523,922.97 and 209,891.45 is: 289,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,646.39 : 523,922.97 = 209,891.45 : x
  2. Step 2: Convert to fraction form
    379,646.39/523,922.97 = 209,891.45/x
  3. Step 3: Cross multiply
    379,646.39x = 523,922.97 × 209,891.45
  4. Step 4: Simplify right side
    379,646.39x = 109,966,949,241.99
  5. Step 5: Solve for x
    x = 109,966,949,241.99/379,646.39
  6. Step 6: Final answer
    x = 289,656.25

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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.