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Finding the Fourth Proportional to 547,105.62, 755,131.71 and 320,824.02

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Solution

The fourth proportional to 547,105.62, 755,131.71 and 320,824.02 is: 442,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,105.62 : 755,131.71 = 320,824.02 : x
  2. Step 2: Convert to fraction form
    547,105.62/755,131.71 = 320,824.02/x
  3. Step 3: Cross multiply
    547,105.62x = 755,131.71 × 320,824.02
  4. Step 4: Simplify right side
    547,105.62x = 242,264,390,831.67
  5. Step 5: Solve for x
    x = 242,264,390,831.67/547,105.62
  6. Step 6: Final answer
    x = 442,811.01

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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.