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Finding the Fourth Proportional to 609,255, 840,655.26 and 394,365.24

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Solution

The fourth proportional to 609,255, 840,655.26 and 394,365.24 is: 544,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,255 : 840,655.26 = 394,365.24 : x
  2. Step 2: Convert to fraction form
    609,255/840,655.26 = 394,365.24/x
  3. Step 3: Cross multiply
    609,255x = 840,655.26 × 394,365.24
  4. Step 4: Simplify right side
    609,255x = 331,525,213,367.16
  5. Step 5: Solve for x
    x = 331,525,213,367.16/609,255
  6. Step 6: Final answer
    x = 544,148.53

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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.