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Finding the Fourth Proportional to 613,612.80, 919,915.92 and 276,552.36

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Solution

The fourth proportional to 613,612.80, 919,915.92 and 276,552.36 is: 414,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,612.80 : 919,915.92 = 276,552.36 : x
  2. Step 2: Convert to fraction form
    613,612.80/919,915.92 = 276,552.36/x
  3. Step 3: Cross multiply
    613,612.80x = 919,915.92 × 276,552.36
  4. Step 4: Simplify right side
    613,612.80x = 254,404,918,677.57
  5. Step 5: Solve for x
    x = 254,404,918,677.57/613,612.80
  6. Step 6: Final answer
    x = 414,601.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.