Home / 389,315.20-585,201.60-367,196.80

Finding the Fourth Proportional to 389,315.20, 585,201.60 and 367,196.80

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Solution

The fourth proportional to 389,315.20, 585,201.60 and 367,196.80 is: 551,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,315.20 : 585,201.60 = 367,196.80 : x
  2. Step 2: Convert to fraction form
    389,315.20/585,201.60 = 367,196.80/x
  3. Step 3: Cross multiply
    389,315.20x = 585,201.60 × 367,196.80
  4. Step 4: Simplify right side
    389,315.20x = 214,884,154,874.88
  5. Step 5: Solve for x
    x = 214,884,154,874.88/389,315.20
  6. Step 6: Final answer
    x = 551,954.19

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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.