Home / 672,445.33-1,008,118.33-312,840.34

Finding the Fourth Proportional to 672,445.33, 1,008,118.33 and 312,840.34

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Solution

The fourth proportional to 672,445.33, 1,008,118.33 and 312,840.34 is: 469,004.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,445.33 : 1,008,118.33 = 312,840.34 : x
  2. Step 2: Convert to fraction form
    672,445.33/1,008,118.33 = 312,840.34/x
  3. Step 3: Cross multiply
    672,445.33x = 1,008,118.33 × 312,840.34
  4. Step 4: Simplify right side
    672,445.33x = 315,380,074,512.64
  5. Step 5: Solve for x
    x = 315,380,074,512.64/672,445.33
  6. Step 6: Final answer
    x = 469,004.78

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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.