Home / 859,988.32-1,290,544.32-327,514.48

Finding the Fourth Proportional to 859,988.32, 1,290,544.32 and 327,514.48

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Solution

The fourth proportional to 859,988.32, 1,290,544.32 and 327,514.48 is: 491,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,988.32 : 1,290,544.32 = 327,514.48 : x
  2. Step 2: Convert to fraction form
    859,988.32/1,290,544.32 = 327,514.48/x
  3. Step 3: Cross multiply
    859,988.32x = 1,290,544.32 × 327,514.48
  4. Step 4: Simplify right side
    859,988.32x = 422,671,951,881.75
  5. Step 5: Solve for x
    x = 422,671,951,881.75/859,988.32
  6. Step 6: Final answer
    x = 491,485.69

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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.