Home / 794,375.60-1,190,785.80-320,428.40

Finding the Fourth Proportional to 794,375.60, 1,190,785.80 and 320,428.40

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Solution

The fourth proportional to 794,375.60, 1,190,785.80 and 320,428.40 is: 480,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,375.60 : 1,190,785.80 = 320,428.40 : x
  2. Step 2: Convert to fraction form
    794,375.60/1,190,785.80 = 320,428.40/x
  3. Step 3: Cross multiply
    794,375.60x = 1,190,785.80 × 320,428.40
  4. Step 4: Simplify right side
    794,375.60x = 381,561,588,636.72
  5. Step 5: Solve for x
    x = 381,561,588,636.72/794,375.60
  6. Step 6: Final answer
    x = 480,328.94

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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.