Home / 324,419.35-444,447.08-312,290.03

Finding the Fourth Proportional to 324,419.35, 444,447.08 and 312,290.03

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Solution

The fourth proportional to 324,419.35, 444,447.08 and 312,290.03 is: 427,830.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,419.35 : 444,447.08 = 312,290.03 : x
  2. Step 2: Convert to fraction form
    324,419.35/444,447.08 = 312,290.03/x
  3. Step 3: Cross multiply
    324,419.35x = 444,447.08 × 312,290.03
  4. Step 4: Simplify right side
    324,419.35x = 138,796,391,946.61
  5. Step 5: Solve for x
    x = 138,796,391,946.61/324,419.35
  6. Step 6: Final answer
    x = 427,830.19

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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.