Home / 1,321,342.20-1,823,742.54-868,675.32

Finding the Fourth Proportional to 1,321,342.20, 1,823,742.54 and 868,675.32

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Solution

The fourth proportional to 1,321,342.20, 1,823,742.54 and 868,675.32 is: 1,198,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,342.20 : 1,823,742.54 = 868,675.32 : x
  2. Step 2: Convert to fraction form
    1,321,342.20/1,823,742.54 = 868,675.32/x
  3. Step 3: Cross multiply
    1,321,342.20x = 1,823,742.54 × 868,675.32
  4. Step 4: Simplify right side
    1,321,342.20x = 1,584,240,134,532.11
  5. Step 5: Solve for x
    x = 1,584,240,134,532.11/1,321,342.20
  6. Step 6: Final answer
    x = 1,198,962.79

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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.