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Finding the Fourth Proportional to 545,233.80, 817,850.70 and 377,272.20

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Solution

The fourth proportional to 545,233.80, 817,850.70 and 377,272.20 is: 565,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,233.80 : 817,850.70 = 377,272.20 : x
  2. Step 2: Convert to fraction form
    545,233.80/817,850.70 = 377,272.20/x
  3. Step 3: Cross multiply
    545,233.80x = 817,850.70 × 377,272.20
  4. Step 4: Simplify right side
    545,233.80x = 308,552,332,860.54
  5. Step 5: Solve for x
    x = 308,552,332,860.54/545,233.80
  6. Step 6: Final answer
    x = 565,908.30

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Double scale
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Similar ratio
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1.5x scale

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.