Home / 587,142.03-879,217.68-386,855.37

Finding the Fourth Proportional to 587,142.03, 879,217.68 and 386,855.37

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Solution

The fourth proportional to 587,142.03, 879,217.68 and 386,855.37 is: 579,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,142.03 : 879,217.68 = 386,855.37 : x
  2. Step 2: Convert to fraction form
    587,142.03/879,217.68 = 386,855.37/x
  3. Step 3: Cross multiply
    587,142.03x = 879,217.68 × 386,855.37
  4. Step 4: Simplify right side
    587,142.03x = 340,130,080,906.94
  5. Step 5: Solve for x
    x = 340,130,080,906.94/587,142.03
  6. Step 6: Final answer
    x = 579,297.79

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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.