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Finding the Fourth Proportional to 560,739.54, 773,820.24 and 306,090.66

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Solution

The fourth proportional to 560,739.54, 773,820.24 and 306,090.66 is: 422,404.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,739.54 : 773,820.24 = 306,090.66 : x
  2. Step 2: Convert to fraction form
    560,739.54/773,820.24 = 306,090.66/x
  3. Step 3: Cross multiply
    560,739.54x = 773,820.24 × 306,090.66
  4. Step 4: Simplify right side
    560,739.54x = 236,859,147,982.96
  5. Step 5: Solve for x
    x = 236,859,147,982.96/560,739.54
  6. Step 6: Final answer
    x = 422,404.93

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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.