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Finding the Fourth Proportional to 547,092.82, 755,114.07 and 320,811.22

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Solution

The fourth proportional to 547,092.82, 755,114.07 and 320,811.22 is: 442,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,092.82 : 755,114.07 = 320,811.22 : x
  2. Step 2: Convert to fraction form
    547,092.82/755,114.07 = 320,811.22/x
  3. Step 3: Cross multiply
    547,092.82x = 755,114.07 × 320,811.22
  4. Step 4: Simplify right side
    547,092.82x = 242,249,066,035.87
  5. Step 5: Solve for x
    x = 242,249,066,035.87/547,092.82
  6. Step 6: Final answer
    x = 442,793.36

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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.