Home / 380,613.83-570,741.96-220,735.20

Finding the Fourth Proportional to 380,613.83, 570,741.96 and 220,735.20

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Solution

The fourth proportional to 380,613.83, 570,741.96 and 220,735.20 is: 330,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,613.83 : 570,741.96 = 220,735.20 : x
  2. Step 2: Convert to fraction form
    380,613.83/570,741.96 = 220,735.20/x
  3. Step 3: Cross multiply
    380,613.83x = 570,741.96 × 220,735.20
  4. Step 4: Simplify right side
    380,613.83x = 125,982,839,585.32
  5. Step 5: Solve for x
    x = 125,982,839,585.32/380,613.83
  6. Step 6: Final answer
    x = 330,999.11

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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.