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Finding the Fourth Proportional to 479,185.02, 661,275.99 and 275,275.44

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Solution

The fourth proportional to 479,185.02, 661,275.99 and 275,275.44 is: 379,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,185.02 : 661,275.99 = 275,275.44 : x
  2. Step 2: Convert to fraction form
    479,185.02/661,275.99 = 275,275.44/x
  3. Step 3: Cross multiply
    479,185.02x = 661,275.99 × 275,275.44
  4. Step 4: Simplify right side
    479,185.02x = 182,033,039,108.69
  5. Step 5: Solve for x
    x = 182,033,039,108.69/479,185.02
  6. Step 6: Final answer
    x = 379,880.49

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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.