Home / 324,418.35-444,445.72-312,289.03

Finding the Fourth Proportional to 324,418.35, 444,445.72 and 312,289.03

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Solution

The fourth proportional to 324,418.35, 444,445.72 and 312,289.03 is: 427,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,418.35 : 444,445.72 = 312,289.03 : x
  2. Step 2: Convert to fraction form
    324,418.35/444,445.72 = 312,289.03/x
  3. Step 3: Cross multiply
    324,418.35x = 444,445.72 × 312,289.03
  4. Step 4: Simplify right side
    324,418.35x = 138,795,521,225.01
  5. Step 5: Solve for x
    x = 138,795,521,225.01/324,418.35
  6. Step 6: Final answer
    x = 427,828.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.