Home / 379,539.10-523,764.03-209,773.21

Finding the Fourth Proportional to 379,539.10, 523,764.03 and 209,773.21

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Solution

The fourth proportional to 379,539.10, 523,764.03 and 209,773.21 is: 289,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,539.10 : 523,764.03 = 209,773.21 : x
  2. Step 2: Convert to fraction form
    379,539.10/523,764.03 = 209,773.21/x
  3. Step 3: Cross multiply
    379,539.10x = 523,764.03 × 209,773.21
  4. Step 4: Simplify right side
    379,539.10x = 109,871,661,855.64
  5. Step 5: Solve for x
    x = 109,871,661,855.64/379,539.10
  6. Step 6: Final answer
    x = 289,487.07

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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.