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Finding the Fourth Proportional to 998,807.95, 1,496,634.04 and 810,900.91

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Solution

The fourth proportional to 998,807.95, 1,496,634.04 and 810,900.91 is: 1,215,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,807.95 : 1,496,634.04 = 810,900.91 : x
  2. Step 2: Convert to fraction form
    998,807.95/1,496,634.04 = 810,900.91/x
  3. Step 3: Cross multiply
    998,807.95x = 1,496,634.04 × 810,900.91
  4. Step 4: Simplify right side
    998,807.95x = 1,213,621,904,972.98
  5. Step 5: Solve for x
    x = 1,213,621,904,972.98/998,807.95
  6. Step 6: Final answer
    x = 1,215,070.33

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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.