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Finding the Fourth Proportional to 613,008.60, 919,512.90 and 329,573.40

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Solution

The fourth proportional to 613,008.60, 919,512.90 and 329,573.40 is: 494,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,008.60 : 919,512.90 = 329,573.40 : x
  2. Step 2: Convert to fraction form
    613,008.60/919,512.90 = 329,573.40/x
  3. Step 3: Cross multiply
    613,008.60x = 919,512.90 × 329,573.40
  4. Step 4: Simplify right side
    613,008.60x = 303,046,992,796.86
  5. Step 5: Solve for x
    x = 303,046,992,796.86/613,008.60
  6. Step 6: Final answer
    x = 494,360.10

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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.