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Finding the Fourth Proportional to 647,594.39, 971,394.02 and 198,313.52

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Solution

The fourth proportional to 647,594.39, 971,394.02 and 198,313.52 is: 297,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,594.39 : 971,394.02 = 198,313.52 : x
  2. Step 2: Convert to fraction form
    647,594.39/971,394.02 = 198,313.52/x
  3. Step 3: Cross multiply
    647,594.39x = 971,394.02 × 198,313.52
  4. Step 4: Simplify right side
    647,594.39x = 192,640,562,308.29
  5. Step 5: Solve for x
    x = 192,640,562,308.29/647,594.39
  6. Step 6: Final answer
    x = 297,471.02

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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.