Home / 1,442,447.58-1,990,626.84-822,344.46

Finding the Fourth Proportional to 1,442,447.58, 1,990,626.84 and 822,344.46

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Solution

The fourth proportional to 1,442,447.58, 1,990,626.84 and 822,344.46 is: 1,134,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,447.58 : 1,990,626.84 = 822,344.46 : x
  2. Step 2: Convert to fraction form
    1,442,447.58/1,990,626.84 = 822,344.46/x
  3. Step 3: Cross multiply
    1,442,447.58x = 1,990,626.84 × 822,344.46
  4. Step 4: Simplify right side
    1,442,447.58x = 1,636,980,953,801.31
  5. Step 5: Solve for x
    x = 1,636,980,953,801.31/1,442,447.58
  6. Step 6: Final answer
    x = 1,134,863.39

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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.