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Finding the Fourth Proportional to 547,092.76, 755,113.98 and 320,811.16

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Solution

The fourth proportional to 547,092.76, 755,113.98 and 320,811.16 is: 442,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,092.76 : 755,113.98 = 320,811.16 : x
  2. Step 2: Convert to fraction form
    547,092.76/755,113.98 = 320,811.16/x
  3. Step 3: Cross multiply
    547,092.76x = 755,113.98 × 320,811.16
  4. Step 4: Simplify right side
    547,092.76x = 242,248,991,856.02
  5. Step 5: Solve for x
    x = 242,248,991,856.02/547,092.76
  6. Step 6: Final answer
    x = 442,793.27

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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.