Home / 1,787,321.11-2,680,958.31-439,495.39

Finding the Fourth Proportional to 1,787,321.11, 2,680,958.31 and 439,495.39

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Solution

The fourth proportional to 1,787,321.11, 2,680,958.31 and 439,495.39 is: 659,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,321.11 : 2,680,958.31 = 439,495.39 : x
  2. Step 2: Convert to fraction form
    1,787,321.11/2,680,958.31 = 439,495.39/x
  3. Step 3: Cross multiply
    1,787,321.11x = 2,680,958.31 × 439,495.39
  4. Step 4: Simplify right side
    1,787,321.11x = 1,178,268,818,027.19
  5. Step 5: Solve for x
    x = 1,178,268,818,027.19/1,787,321.11
  6. Step 6: Final answer
    x = 659,237.34

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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.