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Finding the Fourth Proportional to 547,119.62, 755,151.03 and 320,838.02

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Solution

The fourth proportional to 547,119.62, 755,151.03 and 320,838.02 is: 442,830.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,119.62 : 755,151.03 = 320,838.02 : x
  2. Step 2: Convert to fraction form
    547,119.62/755,151.03 = 320,838.02/x
  3. Step 3: Cross multiply
    547,119.62x = 755,151.03 × 320,838.02
  4. Step 4: Simplify right side
    547,119.62x = 242,281,161,266.16
  5. Step 5: Solve for x
    x = 242,281,161,266.16/547,119.62
  6. Step 6: Final answer
    x = 442,830.33

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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.