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Finding the Fourth Proportional to 894,168.09, 1,341,843.03 and 420,988.77

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Solution

The fourth proportional to 894,168.09, 1,341,843.03 and 420,988.77 is: 631,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,168.09 : 1,341,843.03 = 420,988.77 : x
  2. Step 2: Convert to fraction form
    894,168.09/1,341,843.03 = 420,988.77/x
  3. Step 3: Cross multiply
    894,168.09x = 1,341,843.03 × 420,988.77
  4. Step 4: Simplify right side
    894,168.09x = 564,900,846,732.77
  5. Step 5: Solve for x
    x = 564,900,846,732.77/894,168.09
  6. Step 6: Final answer
    x = 631,761.36

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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.