Home / 1,341,391.20-2,012,086.80-442,971.60

Finding the Fourth Proportional to 1,341,391.20, 2,012,086.80 and 442,971.60

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Solution

The fourth proportional to 1,341,391.20, 2,012,086.80 and 442,971.60 is: 664,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,391.20 : 2,012,086.80 = 442,971.60 : x
  2. Step 2: Convert to fraction form
    1,341,391.20/2,012,086.80 = 442,971.60/x
  3. Step 3: Cross multiply
    1,341,391.20x = 2,012,086.80 × 442,971.60
  4. Step 4: Simplify right side
    1,341,391.20x = 891,297,309,134.88
  5. Step 5: Solve for x
    x = 891,297,309,134.88/1,341,391.20
  6. Step 6: Final answer
    x = 664,457.40

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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.