Home / 414,539.55-620,333.10-287,584.20

Finding the Fourth Proportional to 414,539.55, 620,333.10 and 287,584.20

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Solution

The fourth proportional to 414,539.55, 620,333.10 and 287,584.20 is: 430,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,539.55 : 620,333.10 = 287,584.20 : x
  2. Step 2: Convert to fraction form
    414,539.55/620,333.10 = 287,584.20/x
  3. Step 3: Cross multiply
    414,539.55x = 620,333.10 × 287,584.20
  4. Step 4: Simplify right side
    414,539.55x = 178,397,998,297.02
  5. Step 5: Solve for x
    x = 178,397,998,297.02/414,539.55
  6. Step 6: Final answer
    x = 430,352.18

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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.