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Finding the Fourth Proportional to 479,506.79, 661,716.11 and 264,646.85

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Solution

The fourth proportional to 479,506.79, 661,716.11 and 264,646.85 is: 365,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,506.79 : 661,716.11 = 264,646.85 : x
  2. Step 2: Convert to fraction form
    479,506.79/661,716.11 = 264,646.85/x
  3. Step 3: Cross multiply
    479,506.79x = 661,716.11 × 264,646.85
  4. Step 4: Simplify right side
    479,506.79x = 175,121,084,105.75
  5. Step 5: Solve for x
    x = 175,121,084,105.75/479,506.79
  6. Step 6: Final answer
    x = 365,210.85

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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.