Home / 379,427.06-523,588.78-209,650.25

Finding the Fourth Proportional to 379,427.06, 523,588.78 and 209,650.25

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Solution

The fourth proportional to 379,427.06, 523,588.78 and 209,650.25 is: 289,305.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,427.06 : 523,588.78 = 209,650.25 : x
  2. Step 2: Convert to fraction form
    379,427.06/523,588.78 = 209,650.25/x
  3. Step 3: Cross multiply
    379,427.06x = 523,588.78 × 209,650.25
  4. Step 4: Simplify right side
    379,427.06x = 109,770,518,624.20
  5. Step 5: Solve for x
    x = 109,770,518,624.20/379,427.06
  6. Step 6: Final answer
    x = 289,305.98

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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.