Home / 1,330,488.05-1,996,993.80-823,515.48

Finding the Fourth Proportional to 1,330,488.05, 1,996,993.80 and 823,515.48

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Solution

The fourth proportional to 1,330,488.05, 1,996,993.80 and 823,515.48 is: 1,236,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,488.05 : 1,996,993.80 = 823,515.48 : x
  2. Step 2: Convert to fraction form
    1,330,488.05/1,996,993.80 = 823,515.48/x
  3. Step 3: Cross multiply
    1,330,488.05x = 1,996,993.80 × 823,515.48
  4. Step 4: Simplify right side
    1,330,488.05x = 1,644,555,307,764.02
  5. Step 5: Solve for x
    x = 1,644,555,307,764.02/1,330,488.05
  6. Step 6: Final answer
    x = 1,236,054.17

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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.