Home / 1,448,543.82-1,999,357.92-989,844.06

Finding the Fourth Proportional to 1,448,543.82, 1,999,357.92 and 989,844.06

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Solution

The fourth proportional to 1,448,543.82, 1,999,357.92 and 989,844.06 is: 1,366,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,543.82 : 1,999,357.92 = 989,844.06 : x
  2. Step 2: Convert to fraction form
    1,448,543.82/1,999,357.92 = 989,844.06/x
  3. Step 3: Cross multiply
    1,448,543.82x = 1,999,357.92 × 989,844.06
  4. Step 4: Simplify right side
    1,448,543.82x = 1,979,052,560,925.96
  5. Step 5: Solve for x
    x = 1,979,052,560,925.96/1,448,543.82
  6. Step 6: Final answer
    x = 1,366,235.89

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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.