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Finding the Fourth Proportional to 554,281.50, 764,854.36 and 321,672.27

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Solution

The fourth proportional to 554,281.50, 764,854.36 and 321,672.27 is: 443,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,281.50 : 764,854.36 = 321,672.27 : x
  2. Step 2: Convert to fraction form
    554,281.50/764,854.36 = 321,672.27/x
  3. Step 3: Cross multiply
    554,281.50x = 764,854.36 × 321,672.27
  4. Step 4: Simplify right side
    554,281.50x = 246,032,438,200.60
  5. Step 5: Solve for x
    x = 246,032,438,200.60/554,281.50
  6. Step 6: Final answer
    x = 443,876.33

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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.