Home / 1,448,543.45-1,999,357.41-989,843.69

Finding the Fourth Proportional to 1,448,543.45, 1,999,357.41 and 989,843.69

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Solution

The fourth proportional to 1,448,543.45, 1,999,357.41 and 989,843.69 is: 1,366,235.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,543.45 : 1,999,357.41 = 989,843.69 : x
  2. Step 2: Convert to fraction form
    1,448,543.45/1,999,357.41 = 989,843.69/x
  3. Step 3: Cross multiply
    1,448,543.45x = 1,999,357.41 × 989,843.69
  4. Step 4: Simplify right side
    1,448,543.45x = 1,979,051,306,346.46
  5. Step 5: Solve for x
    x = 1,979,051,306,346.46/1,448,543.45
  6. Step 6: Final answer
    x = 1,366,235.38

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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.