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Finding the Fourth Proportional to 436,822.40, 655,233.60 and 347,592.80

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Solution

The fourth proportional to 436,822.40, 655,233.60 and 347,592.80 is: 521,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,822.40 : 655,233.60 = 347,592.80 : x
  2. Step 2: Convert to fraction form
    436,822.40/655,233.60 = 347,592.80/x
  3. Step 3: Cross multiply
    436,822.40x = 655,233.60 × 347,592.80
  4. Step 4: Simplify right side
    436,822.40x = 227,754,481,678.08
  5. Step 5: Solve for x
    x = 227,754,481,678.08/436,822.40
  6. Step 6: Final answer
    x = 521,389.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.