Home / 721,181.04-1,081,188.36-300,771.60

Finding the Fourth Proportional to 721,181.04, 1,081,188.36 and 300,771.60

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Solution

The fourth proportional to 721,181.04, 1,081,188.36 and 300,771.60 is: 450,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,181.04 : 1,081,188.36 = 300,771.60 : x
  2. Step 2: Convert to fraction form
    721,181.04/1,081,188.36 = 300,771.60/x
  3. Step 3: Cross multiply
    721,181.04x = 1,081,188.36 × 300,771.60
  4. Step 4: Simplify right side
    721,181.04x = 325,190,752,938.58
  5. Step 5: Solve for x
    x = 325,190,752,938.58/721,181.04
  6. Step 6: Final answer
    x = 450,914.17

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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.