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Finding the Fourth Proportional to 505,802.52, 759,129.48 and 253,007.28

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Solution

The fourth proportional to 505,802.52, 759,129.48 and 253,007.28 is: 379,723.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,802.52 : 759,129.48 = 253,007.28 : x
  2. Step 2: Convert to fraction form
    505,802.52/759,129.48 = 253,007.28/x
  3. Step 3: Cross multiply
    505,802.52x = 759,129.48 × 253,007.28
  4. Step 4: Simplify right side
    505,802.52x = 192,065,284,902.61
  5. Step 5: Solve for x
    x = 192,065,284,902.61/505,802.52
  6. Step 6: Final answer
    x = 379,723.86

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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.