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Finding the Fourth Proportional to 555,956.82, 767,221.74 and 301,307.94

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Solution

The fourth proportional to 555,956.82, 767,221.74 and 301,307.94 is: 415,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,956.82 : 767,221.74 = 301,307.94 : x
  2. Step 2: Convert to fraction form
    555,956.82/767,221.74 = 301,307.94/x
  3. Step 3: Cross multiply
    555,956.82x = 767,221.74 × 301,307.94
  4. Step 4: Simplify right side
    555,956.82x = 231,170,002,002.62
  5. Step 5: Solve for x
    x = 231,170,002,002.62/555,956.82
  6. Step 6: Final answer
    x = 415,805.68

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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.