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Finding the Fourth Proportional to 777,324.40, 1,163,221.80 and 539,551.60

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Solution

The fourth proportional to 777,324.40, 1,163,221.80 and 539,551.60 is: 807,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,324.40 : 1,163,221.80 = 539,551.60 : x
  2. Step 2: Convert to fraction form
    777,324.40/1,163,221.80 = 539,551.60/x
  3. Step 3: Cross multiply
    777,324.40x = 1,163,221.80 × 539,551.60
  4. Step 4: Simplify right side
    777,324.40x = 627,618,183,344.88
  5. Step 5: Solve for x
    x = 627,618,183,344.88/777,324.40
  6. Step 6: Final answer
    x = 807,408.31

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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.