Home / 547,101.51-755,126.06-320,819.91

Finding the Fourth Proportional to 547,101.51, 755,126.06 and 320,819.91

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Solution

The fourth proportional to 547,101.51, 755,126.06 and 320,819.91 is: 442,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,101.51 : 755,126.06 = 320,819.91 : x
  2. Step 2: Convert to fraction form
    547,101.51/755,126.06 = 320,819.91/x
  3. Step 3: Cross multiply
    547,101.51x = 755,126.06 × 320,819.91
  4. Step 4: Simplify right side
    547,101.51x = 242,259,474,607.86
  5. Step 5: Solve for x
    x = 242,259,474,607.86/547,101.51
  6. Step 6: Final answer
    x = 442,805.35

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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.