Home / 3,191,303.11-4,786,987.23-916,821.73

Finding the Fourth Proportional to 3,191,303.11, 4,786,987.23 and 916,821.73

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Solution

The fourth proportional to 3,191,303.11, 4,786,987.23 and 916,821.73 is: 1,375,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,303.11 : 4,786,987.23 = 916,821.73 : x
  2. Step 2: Convert to fraction form
    3,191,303.11/4,786,987.23 = 916,821.73/x
  3. Step 3: Cross multiply
    3,191,303.11x = 4,786,987.23 × 916,821.73
  4. Step 4: Simplify right side
    3,191,303.11x = 4,388,813,913,696.51
  5. Step 5: Solve for x
    x = 4,388,813,913,696.51/3,191,303.11
  6. Step 6: Final answer
    x = 1,375,241.95

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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.