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Finding the Fourth Proportional to 379,588.04, 523,811.04 and 209,812.04

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Solution

The fourth proportional to 379,588.04, 523,811.04 and 209,812.04 is: 289,529.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,588.04 : 523,811.04 = 209,812.04 : x
  2. Step 2: Convert to fraction form
    379,588.04/523,811.04 = 209,812.04/x
  3. Step 3: Cross multiply
    379,588.04x = 523,811.04 × 209,812.04
  4. Step 4: Simplify right side
    379,588.04x = 109,901,862,876.92
  5. Step 5: Solve for x
    x = 109,901,862,876.92/379,588.04
  6. Step 6: Final answer
    x = 289,529.31

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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.