Home / 782,351.18-1,173,526.80-427,171.46

Finding the Fourth Proportional to 782,351.18, 1,173,526.80 and 427,171.46

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Solution

The fourth proportional to 782,351.18, 1,173,526.80 and 427,171.46 is: 640,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,351.18 : 1,173,526.80 = 427,171.46 : x
  2. Step 2: Convert to fraction form
    782,351.18/1,173,526.80 = 427,171.46/x
  3. Step 3: Cross multiply
    782,351.18x = 1,173,526.80 × 427,171.46
  4. Step 4: Simplify right side
    782,351.18x = 501,297,156,505.13
  5. Step 5: Solve for x
    x = 501,297,156,505.13/782,351.18
  6. Step 6: Final answer
    x = 640,757.21

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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.