Home / 379,433.14-523,610.49-209,663.62

Finding the Fourth Proportional to 379,433.14, 523,610.49 and 209,663.62

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Solution

The fourth proportional to 379,433.14, 523,610.49 and 209,663.62 is: 289,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,433.14 : 523,610.49 = 209,663.62 : x
  2. Step 2: Convert to fraction form
    379,433.14/523,610.49 = 209,663.62/x
  3. Step 3: Cross multiply
    379,433.14x = 523,610.49 × 209,663.62
  4. Step 4: Simplify right side
    379,433.14x = 109,782,070,803.37
  5. Step 5: Solve for x
    x = 109,782,070,803.37/379,433.14
  6. Step 6: Final answer
    x = 289,331.79

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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.