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Finding the Fourth Proportional to 624,367.44, 861,666 and 352,481.40

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Solution

The fourth proportional to 624,367.44, 861,666 and 352,481.40 is: 486,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,367.44 : 861,666 = 352,481.40 : x
  2. Step 2: Convert to fraction form
    624,367.44/861,666 = 352,481.40/x
  3. Step 3: Cross multiply
    624,367.44x = 861,666 × 352,481.40
  4. Step 4: Simplify right side
    624,367.44x = 303,721,238,012.40
  5. Step 5: Solve for x
    x = 303,721,238,012.40/624,367.44
  6. Step 6: Final answer
    x = 486,446.31

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1.5x scale

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.