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Finding the Fourth Proportional to 547,097.62, 755,120.37 and 355,777.78

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Solution

The fourth proportional to 547,097.62, 755,120.37 and 355,777.78 is: 491,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,097.62 : 755,120.37 = 355,777.78 : x
  2. Step 2: Convert to fraction form
    547,097.62/755,120.37 = 355,777.78/x
  3. Step 3: Cross multiply
    547,097.62x = 755,120.37 × 355,777.78
  4. Step 4: Simplify right side
    547,097.62x = 268,655,048,871.38
  5. Step 5: Solve for x
    x = 268,655,048,871.38/547,097.62
  6. Step 6: Final answer
    x = 491,055.05

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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.