Home / 911,976.32-1,367,964.48-247,128.32

Finding the Fourth Proportional to 911,976.32, 1,367,964.48 and 247,128.32

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Solution

The fourth proportional to 911,976.32, 1,367,964.48 and 247,128.32 is: 370,692.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,976.32 : 1,367,964.48 = 247,128.32 : x
  2. Step 2: Convert to fraction form
    911,976.32/1,367,964.48 = 247,128.32/x
  3. Step 3: Cross multiply
    911,976.32x = 1,367,964.48 × 247,128.32
  4. Step 4: Simplify right side
    911,976.32x = 338,062,763,762.07
  5. Step 5: Solve for x
    x = 338,062,763,762.07/911,976.32
  6. Step 6: Final answer
    x = 370,692.48

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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.