Home / 324,418.02-444,445.26-312,288.72

Finding the Fourth Proportional to 324,418.02, 444,445.26 and 312,288.72

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Solution

The fourth proportional to 324,418.02, 444,445.26 and 312,288.72 is: 427,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,418.02 : 444,445.26 = 312,288.72 : x
  2. Step 2: Convert to fraction form
    324,418.02/444,445.26 = 312,288.72/x
  3. Step 3: Cross multiply
    324,418.02x = 444,445.26 × 312,288.72
  4. Step 4: Simplify right side
    324,418.02x = 138,795,241,355.47
  5. Step 5: Solve for x
    x = 138,795,241,355.47/324,418.02
  6. Step 6: Final answer
    x = 427,828.40

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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.