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Finding the Fourth Proportional to 479,585.80, 661,828.30 and 264,725.80

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Solution

The fourth proportional to 479,585.80, 661,828.30 and 264,725.80 is: 365,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,585.80 : 661,828.30 = 264,725.80 : x
  2. Step 2: Convert to fraction form
    479,585.80/661,828.30 = 264,725.80/x
  3. Step 3: Cross multiply
    479,585.80x = 661,828.30 × 264,725.80
  4. Step 4: Simplify right side
    479,585.80x = 175,203,024,856.51
  5. Step 5: Solve for x
    x = 175,203,024,856.51/479,585.80
  6. Step 6: Final answer
    x = 365,321.55

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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.