Home / 1,787,319.11-2,680,955.31-439,493.39

Finding the Fourth Proportional to 1,787,319.11, 2,680,955.31 and 439,493.39

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Solution

The fourth proportional to 1,787,319.11, 2,680,955.31 and 439,493.39 is: 659,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,319.11 : 2,680,955.31 = 439,493.39 : x
  2. Step 2: Convert to fraction form
    1,787,319.11/2,680,955.31 = 439,493.39/x
  3. Step 3: Cross multiply
    1,787,319.11x = 2,680,955.31 × 439,493.39
  4. Step 4: Simplify right side
    1,787,319.11x = 1,178,262,137,622.98
  5. Step 5: Solve for x
    x = 1,178,262,137,622.98/1,787,319.11
  6. Step 6: Final answer
    x = 659,234.34

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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.