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Finding the Fourth Proportional to 1,451,718, 2,003,370.84 and 815,814

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Solution

The fourth proportional to 1,451,718, 2,003,370.84 and 815,814 is: 1,125,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,718 : 2,003,370.84 = 815,814 : x
  2. Step 2: Convert to fraction form
    1,451,718/2,003,370.84 = 815,814/x
  3. Step 3: Cross multiply
    1,451,718x = 2,003,370.84 × 815,814
  4. Step 4: Simplify right side
    1,451,718x = 1,634,377,978,463.76
  5. Step 5: Solve for x
    x = 1,634,377,978,463.76/1,451,718
  6. Step 6: Final answer
    x = 1,125,823.32

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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.