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Finding the Fourth Proportional to 505,836.47, 759,128.89 and 239,597.58

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Solution

The fourth proportional to 505,836.47, 759,128.89 and 239,597.58 is: 359,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,836.47 : 759,128.89 = 239,597.58 : x
  2. Step 2: Convert to fraction form
    505,836.47/759,128.89 = 239,597.58/x
  3. Step 3: Cross multiply
    505,836.47x = 759,128.89 × 239,597.58
  4. Step 4: Simplify right side
    505,836.47x = 181,885,445,907.68
  5. Step 5: Solve for x
    x = 181,885,445,907.68/505,836.47
  6. Step 6: Final answer
    x = 359,573.61

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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.