Home / 979,996.77-1,469,684.12-314,993.25

Finding the Fourth Proportional to 979,996.77, 1,469,684.12 and 314,993.25

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Solution

The fourth proportional to 979,996.77, 1,469,684.12 and 314,993.25 is: 472,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,996.77 : 1,469,684.12 = 314,993.25 : x
  2. Step 2: Convert to fraction form
    979,996.77/1,469,684.12 = 314,993.25/x
  3. Step 3: Cross multiply
    979,996.77x = 1,469,684.12 × 314,993.25
  4. Step 4: Simplify right side
    979,996.77x = 462,940,575,857.22
  5. Step 5: Solve for x
    x = 462,940,575,857.22/979,996.77
  6. Step 6: Final answer
    x = 472,389.90

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Double scale
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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.