Home / 689,097.40-1,033,646.10-215,927.80

Finding the Fourth Proportional to 689,097.40, 1,033,646.10 and 215,927.80

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Solution

The fourth proportional to 689,097.40, 1,033,646.10 and 215,927.80 is: 323,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,097.40 : 1,033,646.10 = 215,927.80 : x
  2. Step 2: Convert to fraction form
    689,097.40/1,033,646.10 = 215,927.80/x
  3. Step 3: Cross multiply
    689,097.40x = 1,033,646.10 × 215,927.80
  4. Step 4: Simplify right side
    689,097.40x = 223,192,928,351.58
  5. Step 5: Solve for x
    x = 223,192,928,351.58/689,097.40
  6. Step 6: Final answer
    x = 323,891.70

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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.