Home / 1,081,172.90-1,491,771.14-645,505.62

Finding the Fourth Proportional to 1,081,172.90, 1,491,771.14 and 645,505.62

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Solution

The fourth proportional to 1,081,172.90, 1,491,771.14 and 645,505.62 is: 890,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,172.90 : 1,491,771.14 = 645,505.62 : x
  2. Step 2: Convert to fraction form
    1,081,172.90/1,491,771.14 = 645,505.62/x
  3. Step 3: Cross multiply
    1,081,172.90x = 1,491,771.14 × 645,505.62
  4. Step 4: Simplify right side
    1,081,172.90x = 962,946,651,396.28
  5. Step 5: Solve for x
    x = 962,946,651,396.28/1,081,172.90
  6. Step 6: Final answer
    x = 890,650.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.