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Finding the Fourth Proportional to 478,992.72, 661,049.32 and 264,174.80

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Solution

The fourth proportional to 478,992.72, 661,049.32 and 264,174.80 is: 364,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,992.72 : 661,049.32 = 264,174.80 : x
  2. Step 2: Convert to fraction form
    478,992.72/661,049.32 = 264,174.80/x
  3. Step 3: Cross multiply
    478,992.72x = 661,049.32 × 264,174.80
  4. Step 4: Simplify right side
    478,992.72x = 174,632,571,901.14
  5. Step 5: Solve for x
    x = 174,632,571,901.14/478,992.72
  6. Step 6: Final answer
    x = 364,582.94

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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.