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Finding the Fourth Proportional to 479,559.53, 661,792.21 and 264,699.65

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Solution

The fourth proportional to 479,559.53, 661,792.21 and 264,699.65 is: 365,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,559.53 : 661,792.21 = 264,699.65 : x
  2. Step 2: Convert to fraction form
    479,559.53/661,792.21 = 264,699.65/x
  3. Step 3: Cross multiply
    479,559.53x = 661,792.21 × 264,699.65
  4. Step 4: Simplify right side
    479,559.53x = 175,176,164,467.50
  5. Step 5: Solve for x
    x = 175,176,164,467.50/479,559.53
  6. Step 6: Final answer
    x = 365,285.55

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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.