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Finding the Fourth Proportional to 555,812.85, 767,021.87 and 301,164.03

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Solution

The fourth proportional to 555,812.85, 767,021.87 and 301,164.03 is: 415,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,812.85 : 767,021.87 = 301,164.03 : x
  2. Step 2: Convert to fraction form
    555,812.85/767,021.87 = 301,164.03/x
  3. Step 3: Cross multiply
    555,812.85x = 767,021.87 × 301,164.03
  4. Step 4: Simplify right side
    555,812.85x = 230,999,397,467.34
  5. Step 5: Solve for x
    x = 230,999,397,467.34/555,812.85
  6. Step 6: Final answer
    x = 415,606.44

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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.