Home / 379,426.56-523,588.10-209,649.75

Finding the Fourth Proportional to 379,426.56, 523,588.10 and 209,649.75

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Solution

The fourth proportional to 379,426.56, 523,588.10 and 209,649.75 is: 289,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,426.56 : 523,588.10 = 209,649.75 : x
  2. Step 2: Convert to fraction form
    379,426.56/523,588.10 = 209,649.75/x
  3. Step 3: Cross multiply
    379,426.56x = 523,588.10 × 209,649.75
  4. Step 4: Simplify right side
    379,426.56x = 109,770,113,219.73
  5. Step 5: Solve for x
    x = 109,770,113,219.73/379,426.56
  6. Step 6: Final answer
    x = 289,305.30

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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.