Home / 783,997.60-1,175,996.40-285,296.80

Finding the Fourth Proportional to 783,997.60, 1,175,996.40 and 285,296.80

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Solution

The fourth proportional to 783,997.60, 1,175,996.40 and 285,296.80 is: 427,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,997.60 : 1,175,996.40 = 285,296.80 : x
  2. Step 2: Convert to fraction form
    783,997.60/1,175,996.40 = 285,296.80/x
  3. Step 3: Cross multiply
    783,997.60x = 1,175,996.40 × 285,296.80
  4. Step 4: Simplify right side
    783,997.60x = 335,508,009,731.52
  5. Step 5: Solve for x
    x = 335,508,009,731.52/783,997.60
  6. Step 6: Final answer
    x = 427,945.20

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Similar ratio
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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.