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Finding the Fourth Proportional to 660,224.48, 911,131.62 and 373,738.64

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Solution

The fourth proportional to 660,224.48, 911,131.62 and 373,738.64 is: 515,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,224.48 : 911,131.62 = 373,738.64 : x
  2. Step 2: Convert to fraction form
    660,224.48/911,131.62 = 373,738.64/x
  3. Step 3: Cross multiply
    660,224.48x = 911,131.62 × 373,738.64
  4. Step 4: Simplify right side
    660,224.48x = 340,525,092,519.80
  5. Step 5: Solve for x
    x = 340,525,092,519.80/660,224.48
  6. Step 6: Final answer
    x = 515,771.68

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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.