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Finding the Fourth Proportional to 547,286.01, 755,055.23 and 320,887.77

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Solution

The fourth proportional to 547,286.01, 755,055.23 and 320,887.77 is: 442,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,286.01 : 755,055.23 = 320,887.77 : x
  2. Step 2: Convert to fraction form
    547,286.01/755,055.23 = 320,887.77/x
  3. Step 3: Cross multiply
    547,286.01x = 755,055.23 × 320,887.77
  4. Step 4: Simplify right side
    547,286.01x = 242,287,988,981.54
  5. Step 5: Solve for x
    x = 242,287,988,981.54/547,286.01
  6. Step 6: Final answer
    x = 442,708.17

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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.