Home / 1,326,724.68-1,990,065.15-380,074.44

Finding the Fourth Proportional to 1,326,724.68, 1,990,065.15 and 380,074.44

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Solution

The fourth proportional to 1,326,724.68, 1,990,065.15 and 380,074.44 is: 570,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,724.68 : 1,990,065.15 = 380,074.44 : x
  2. Step 2: Convert to fraction form
    1,326,724.68/1,990,065.15 = 380,074.44/x
  3. Step 3: Cross multiply
    1,326,724.68x = 1,990,065.15 × 380,074.44
  4. Step 4: Simplify right side
    1,326,724.68x = 756,372,897,449.77
  5. Step 5: Solve for x
    x = 756,372,897,449.77/1,326,724.68
  6. Step 6: Final answer
    x = 570,105.39

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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.