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Finding the Fourth Proportional to 555,839.31, 767,059.43 and 301,190.57

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Solution

The fourth proportional to 555,839.31, 767,059.43 and 301,190.57 is: 415,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,839.31 : 767,059.43 = 301,190.57 : x
  2. Step 2: Convert to fraction form
    555,839.31/767,059.43 = 301,190.57/x
  3. Step 3: Cross multiply
    555,839.31x = 767,059.43 × 301,190.57
  4. Step 4: Simplify right side
    555,839.31x = 231,031,061,604.33
  5. Step 5: Solve for x
    x = 231,031,061,604.33/555,839.31
  6. Step 6: Final answer
    x = 415,643.62

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1.5x scale

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.