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Finding the Fourth Proportional to 647,934.80, 971,556.60 and 273,534.80

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Solution

The fourth proportional to 647,934.80, 971,556.60 and 273,534.80 is: 410,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,934.80 : 971,556.60 = 273,534.80 : x
  2. Step 2: Convert to fraction form
    647,934.80/971,556.60 = 273,534.80/x
  3. Step 3: Cross multiply
    647,934.80x = 971,556.60 × 273,534.80
  4. Step 4: Simplify right side
    647,934.80x = 265,754,540,269.68
  5. Step 5: Solve for x
    x = 265,754,540,269.68/647,934.80
  6. Step 6: Final answer
    x = 410,156.30

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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.