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Finding the Fourth Proportional to 826,055, 1,239,454.19 and 446,531.32

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Solution

The fourth proportional to 826,055, 1,239,454.19 and 446,531.32 is: 669,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,055 : 1,239,454.19 = 446,531.32 : x
  2. Step 2: Convert to fraction form
    826,055/1,239,454.19 = 446,531.32/x
  3. Step 3: Cross multiply
    826,055x = 1,239,454.19 × 446,531.32
  4. Step 4: Simplify right side
    826,055x = 553,455,115,540.23
  5. Step 5: Solve for x
    x = 553,455,115,540.23/826,055
  6. Step 6: Final answer
    x = 669,997.90

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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.