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Finding the Fourth Proportional to 1,620,309, 2,236,026.48 and 904,917

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Solution

The fourth proportional to 1,620,309, 2,236,026.48 and 904,917 is: 1,248,785.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,309 : 2,236,026.48 = 904,917 : x
  2. Step 2: Convert to fraction form
    1,620,309/2,236,026.48 = 904,917/x
  3. Step 3: Cross multiply
    1,620,309x = 2,236,026.48 × 904,917
  4. Step 4: Simplify right side
    1,620,309x = 2,023,418,374,202.16
  5. Step 5: Solve for x
    x = 2,023,418,374,202.16/1,620,309
  6. Step 6: Final answer
    x = 1,248,785.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.