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Finding the Fourth Proportional to 505,818.98, 758,710.94 and 126,743.03

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Solution

The fourth proportional to 505,818.98, 758,710.94 and 126,743.03 is: 190,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,818.98 : 758,710.94 = 126,743.03 : x
  2. Step 2: Convert to fraction form
    505,818.98/758,710.94 = 126,743.03/x
  3. Step 3: Cross multiply
    505,818.98x = 758,710.94 × 126,743.03
  4. Step 4: Simplify right side
    505,818.98x = 96,161,319,636.19
  5. Step 5: Solve for x
    x = 96,161,319,636.19/505,818.98
  6. Step 6: Final answer
    x = 190,110.15

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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.