Home / 379,650.76-523,928.98-209,895.82

Finding the Fourth Proportional to 379,650.76, 523,928.98 and 209,895.82

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Solution

The fourth proportional to 379,650.76, 523,928.98 and 209,895.82 is: 289,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,650.76 : 523,928.98 = 209,895.82 : x
  2. Step 2: Convert to fraction form
    379,650.76/523,928.98 = 209,895.82/x
  3. Step 3: Cross multiply
    379,650.76x = 523,928.98 × 209,895.82
  4. Step 4: Simplify right side
    379,650.76x = 109,970,502,878.86
  5. Step 5: Solve for x
    x = 109,970,502,878.86/379,650.76
  6. Step 6: Final answer
    x = 289,662.28

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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.