Home / 379,414.02-523,601.91-209,659.26

Finding the Fourth Proportional to 379,414.02, 523,601.91 and 209,659.26

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Solution

The fourth proportional to 379,414.02, 523,601.91 and 209,659.26 is: 289,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,414.02 : 523,601.91 = 209,659.26 : x
  2. Step 2: Convert to fraction form
    379,414.02/523,601.91 = 209,659.26/x
  3. Step 3: Cross multiply
    379,414.02x = 523,601.91 × 209,659.26
  4. Step 4: Simplify right side
    379,414.02x = 109,777,988,985.19
  5. Step 5: Solve for x
    x = 109,777,988,985.19/379,414.02
  6. Step 6: Final answer
    x = 289,335.62

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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.