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Finding the Fourth Proportional to 441,561.53, 661,942.38 and 306,689.29

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Solution

The fourth proportional to 441,561.53, 661,942.38 and 306,689.29 is: 459,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,561.53 : 661,942.38 = 306,689.29 : x
  2. Step 2: Convert to fraction form
    441,561.53/661,942.38 = 306,689.29/x
  3. Step 3: Cross multiply
    441,561.53x = 661,942.38 × 306,689.29
  4. Step 4: Simplify right side
    441,561.53x = 203,010,638,543.11
  5. Step 5: Solve for x
    x = 203,010,638,543.11/441,561.53
  6. Step 6: Final answer
    x = 459,756.17

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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.