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Finding the Fourth Proportional to 479,665.42, 661,920.87 and 264,800.87

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Solution

The fourth proportional to 479,665.42, 661,920.87 and 264,800.87 is: 365,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,665.42 : 661,920.87 = 264,800.87 : x
  2. Step 2: Convert to fraction form
    479,665.42/661,920.87 = 264,800.87/x
  3. Step 3: Cross multiply
    479,665.42x = 661,920.87 × 264,800.87
  4. Step 4: Simplify right side
    479,665.42x = 175,277,222,247.16
  5. Step 5: Solve for x
    x = 175,277,222,247.16/479,665.42
  6. Step 6: Final answer
    x = 365,415.59

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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.