Home / 450,837.28-675,789.36-213,999.76

Finding the Fourth Proportional to 450,837.28, 675,789.36 and 213,999.76

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Solution

The fourth proportional to 450,837.28, 675,789.36 and 213,999.76 is: 320,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,837.28 : 675,789.36 = 213,999.76 : x
  2. Step 2: Convert to fraction form
    450,837.28/675,789.36 = 213,999.76/x
  3. Step 3: Cross multiply
    450,837.28x = 675,789.36 × 213,999.76
  4. Step 4: Simplify right side
    450,837.28x = 144,618,760,850.55
  5. Step 5: Solve for x
    x = 144,618,760,850.55/450,837.28
  6. Step 6: Final answer
    x = 320,778.18

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1.5x scale

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.