Home / 858,181.15-1,287,281.45-259,147.27

Finding the Fourth Proportional to 858,181.15, 1,287,281.45 and 259,147.27

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Solution

The fourth proportional to 858,181.15, 1,287,281.45 and 259,147.27 is: 388,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,181.15 : 1,287,281.45 = 259,147.27 : x
  2. Step 2: Convert to fraction form
    858,181.15/1,287,281.45 = 259,147.27/x
  3. Step 3: Cross multiply
    858,181.15x = 1,287,281.45 × 259,147.27
  4. Step 4: Simplify right side
    858,181.15x = 333,595,473,489.14
  5. Step 5: Solve for x
    x = 333,595,473,489.14/858,181.15
  6. Step 6: Final answer
    x = 388,723.84

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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.