Home / 746,850.50-1,120,276.42-320,109.39

Finding the Fourth Proportional to 746,850.50, 1,120,276.42 and 320,109.39

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Solution

The fourth proportional to 746,850.50, 1,120,276.42 and 320,109.39 is: 480,164.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,850.50 : 1,120,276.42 = 320,109.39 : x
  2. Step 2: Convert to fraction form
    746,850.50/1,120,276.42 = 320,109.39/x
  3. Step 3: Cross multiply
    746,850.50x = 1,120,276.42 × 320,109.39
  4. Step 4: Simplify right side
    746,850.50x = 358,611,001,437.58
  5. Step 5: Solve for x
    x = 358,611,001,437.58/746,850.50
  6. Step 6: Final answer
    x = 480,164.37

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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.