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Finding the Fourth Proportional to 723,659.44, 998,490.12 and 417,670.80

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Solution

The fourth proportional to 723,659.44, 998,490.12 and 417,670.80 is: 576,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,659.44 : 998,490.12 = 417,670.80 : x
  2. Step 2: Convert to fraction form
    723,659.44/998,490.12 = 417,670.80/x
  3. Step 3: Cross multiply
    723,659.44x = 998,490.12 × 417,670.80
  4. Step 4: Simplify right side
    723,659.44x = 417,040,167,212.50
  5. Step 5: Solve for x
    x = 417,040,167,212.50/723,659.44
  6. Step 6: Final answer
    x = 576,293.41

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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.