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Finding the Fourth Proportional to 547,322.92, 755,318.46 and 305,597.32

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Solution

The fourth proportional to 547,322.92, 755,318.46 and 305,597.32 is: 421,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,322.92 : 755,318.46 = 305,597.32 : x
  2. Step 2: Convert to fraction form
    547,322.92/755,318.46 = 305,597.32/x
  3. Step 3: Cross multiply
    547,322.92x = 755,318.46 × 305,597.32
  4. Step 4: Simplify right side
    547,322.92x = 230,823,297,122.53
  5. Step 5: Solve for x
    x = 230,823,297,122.53/547,322.92
  6. Step 6: Final answer
    x = 421,731.47

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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.