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Finding the Fourth Proportional to 538,381.45, 806,810.22 and 298,600.90

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Solution

The fourth proportional to 538,381.45, 806,810.22 and 298,600.90 is: 447,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,381.45 : 806,810.22 = 298,600.90 : x
  2. Step 2: Convert to fraction form
    538,381.45/806,810.22 = 298,600.90/x
  3. Step 3: Cross multiply
    538,381.45x = 806,810.22 × 298,600.90
  4. Step 4: Simplify right side
    538,381.45x = 240,914,255,804.17
  5. Step 5: Solve for x
    x = 240,914,255,804.17/538,381.45
  6. Step 6: Final answer
    x = 447,478.74

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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.