Home / 783,422.98-1,175,239.04-309,997.62

Finding the Fourth Proportional to 783,422.98, 1,175,239.04 and 309,997.62

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Solution

The fourth proportional to 783,422.98, 1,175,239.04 and 309,997.62 is: 465,037.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,422.98 : 1,175,239.04 = 309,997.62 : x
  2. Step 2: Convert to fraction form
    783,422.98/1,175,239.04 = 309,997.62/x
  3. Step 3: Cross multiply
    783,422.98x = 1,175,239.04 × 309,997.62
  4. Step 4: Simplify right side
    783,422.98x = 364,321,305,331.09
  5. Step 5: Solve for x
    x = 364,321,305,331.09/783,422.98
  6. Step 6: Final answer
    x = 465,037.81

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Double scale
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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.