Home / 380,609.15-570,734.93-220,730.52

Finding the Fourth Proportional to 380,609.15, 570,734.93 and 220,730.52

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Solution

The fourth proportional to 380,609.15, 570,734.93 and 220,730.52 is: 330,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,609.15 : 570,734.93 = 220,730.52 : x
  2. Step 2: Convert to fraction form
    380,609.15/570,734.93 = 220,730.52/x
  3. Step 3: Cross multiply
    380,609.15x = 570,734.93 × 220,730.52
  4. Step 4: Simplify right side
    380,609.15x = 125,978,616,777.41
  5. Step 5: Solve for x
    x = 125,978,616,777.41/380,609.15
  6. Step 6: Final answer
    x = 330,992.09

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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.