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Finding the Fourth Proportional to 547,100.14, 755,124.16 and 320,818.54

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Solution

The fourth proportional to 547,100.14, 755,124.16 and 320,818.54 is: 442,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,100.14 : 755,124.16 = 320,818.54 : x
  2. Step 2: Convert to fraction form
    547,100.14/755,124.16 = 320,818.54/x
  3. Step 3: Cross multiply
    547,100.14x = 755,124.16 × 320,818.54
  4. Step 4: Simplify right side
    547,100.14x = 242,257,826,754.31
  5. Step 5: Solve for x
    x = 242,257,826,754.31/547,100.14
  6. Step 6: Final answer
    x = 442,803.45

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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.