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Finding the Fourth Proportional to 555,811.85, 767,020.49 and 301,163.03

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Solution

The fourth proportional to 555,811.85, 767,020.49 and 301,163.03 is: 415,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,811.85 : 767,020.49 = 301,163.03 : x
  2. Step 2: Convert to fraction form
    555,811.85/767,020.49 = 301,163.03/x
  3. Step 3: Cross multiply
    555,811.85x = 767,020.49 × 301,163.03
  4. Step 4: Simplify right side
    555,811.85x = 230,998,209,499.57
  5. Step 5: Solve for x
    x = 230,998,209,499.57/555,811.85
  6. Step 6: Final answer
    x = 415,605.05

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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.