Home / 1,489,621.32-2,232,682.11-689,211.72

Finding the Fourth Proportional to 1,489,621.32, 2,232,682.11 and 689,211.72

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Solution

The fourth proportional to 1,489,621.32, 2,232,682.11 and 689,211.72 is: 1,033,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,621.32 : 2,232,682.11 = 689,211.72 : x
  2. Step 2: Convert to fraction form
    1,489,621.32/2,232,682.11 = 689,211.72/x
  3. Step 3: Cross multiply
    1,489,621.32x = 2,232,682.11 × 689,211.72
  4. Step 4: Simplify right side
    1,489,621.32x = 1,538,790,677,246.33
  5. Step 5: Solve for x
    x = 1,538,790,677,246.33/1,489,621.32
  6. Step 6: Final answer
    x = 1,033,007.96

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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.