Home / 1,336,764.90-2,005,147.35-978,042.23

Finding the Fourth Proportional to 1,336,764.90, 2,005,147.35 and 978,042.23

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Solution

The fourth proportional to 1,336,764.90, 2,005,147.35 and 978,042.23 is: 1,467,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,764.90 : 2,005,147.35 = 978,042.23 : x
  2. Step 2: Convert to fraction form
    1,336,764.90/2,005,147.35 = 978,042.23/x
  3. Step 3: Cross multiply
    1,336,764.90x = 2,005,147.35 × 978,042.23
  4. Step 4: Simplify right side
    1,336,764.90x = 1,961,118,785,672.59
  5. Step 5: Solve for x
    x = 1,961,118,785,672.59/1,336,764.90
  6. Step 6: Final answer
    x = 1,467,063.35

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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.