Home / 379,386.27-523,563.62-209,631.33

Finding the Fourth Proportional to 379,386.27, 523,563.62 and 209,631.33

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Solution

The fourth proportional to 379,386.27, 523,563.62 and 209,631.33 is: 289,297.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,386.27 : 523,563.62 = 209,631.33 : x
  2. Step 2: Convert to fraction form
    379,386.27/523,563.62 = 209,631.33/x
  3. Step 3: Cross multiply
    379,386.27x = 523,563.62 × 209,631.33
  4. Step 4: Simplify right side
    379,386.27x = 109,755,336,952.06
  5. Step 5: Solve for x
    x = 109,755,336,952.06/379,386.27
  6. Step 6: Final answer
    x = 289,297.07

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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.