Home / 814,097.80-1,221,146.70-340,733.80

Finding the Fourth Proportional to 814,097.80, 1,221,146.70 and 340,733.80

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Solution

The fourth proportional to 814,097.80, 1,221,146.70 and 340,733.80 is: 511,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,097.80 : 1,221,146.70 = 340,733.80 : x
  2. Step 2: Convert to fraction form
    814,097.80/1,221,146.70 = 340,733.80/x
  3. Step 3: Cross multiply
    814,097.80x = 1,221,146.70 × 340,733.80
  4. Step 4: Simplify right side
    814,097.80x = 416,085,955,448.46
  5. Step 5: Solve for x
    x = 416,085,955,448.46/814,097.80
  6. Step 6: Final answer
    x = 511,100.70

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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.