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Finding the Fourth Proportional to 505,159.29, 756,661.59 and 408,682.52

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Solution

The fourth proportional to 505,159.29, 756,661.59 and 408,682.52 is: 612,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,159.29 : 756,661.59 = 408,682.52 : x
  2. Step 2: Convert to fraction form
    505,159.29/756,661.59 = 408,682.52/x
  3. Step 3: Cross multiply
    505,159.29x = 756,661.59 × 408,682.52
  4. Step 4: Simplify right side
    505,159.29x = 309,234,361,605.10
  5. Step 5: Solve for x
    x = 309,234,361,605.10/505,159.29
  6. Step 6: Final answer
    x = 612,152.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.