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Finding the Fourth Proportional to 541,743.40, 812,744.70 and 261,029.80

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Solution

The fourth proportional to 541,743.40, 812,744.70 and 261,029.80 is: 391,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,743.40 : 812,744.70 = 261,029.80 : x
  2. Step 2: Convert to fraction form
    541,743.40/812,744.70 = 261,029.80/x
  3. Step 3: Cross multiply
    541,743.40x = 812,744.70 × 261,029.80
  4. Step 4: Simplify right side
    541,743.40x = 212,150,586,492.06
  5. Step 5: Solve for x
    x = 212,150,586,492.06/541,743.40
  6. Step 6: Final answer
    x = 391,607.15

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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.