Home / 990,847.32-1,367,376.39-538,138.32

Finding the Fourth Proportional to 990,847.32, 1,367,376.39 and 538,138.32

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Solution

The fourth proportional to 990,847.32, 1,367,376.39 and 538,138.32 is: 742,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,847.32 : 1,367,376.39 = 538,138.32 : x
  2. Step 2: Convert to fraction form
    990,847.32/1,367,376.39 = 538,138.32/x
  3. Step 3: Cross multiply
    990,847.32x = 1,367,376.39 × 538,138.32
  4. Step 4: Simplify right side
    990,847.32x = 735,837,633,322.27
  5. Step 5: Solve for x
    x = 735,837,633,322.27/990,847.32
  6. Step 6: Final answer
    x = 742,634.73

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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.