Home / 836,892.26-1,155,467.40-642,954.50

Finding the Fourth Proportional to 836,892.26, 1,155,467.40 and 642,954.50

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Solution

The fourth proportional to 836,892.26, 1,155,467.40 and 642,954.50 is: 887,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,892.26 : 1,155,467.40 = 642,954.50 : x
  2. Step 2: Convert to fraction form
    836,892.26/1,155,467.40 = 642,954.50/x
  3. Step 3: Cross multiply
    836,892.26x = 1,155,467.40 × 642,954.50
  4. Step 4: Simplify right side
    836,892.26x = 742,912,964,433.30
  5. Step 5: Solve for x
    x = 742,912,964,433.30/836,892.26
  6. Step 6: Final answer
    x = 887,704.43

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Why These Related Problems?

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