Home / 505,819.60-758,711.88-126,743.65

Finding the Fourth Proportional to 505,819.60, 758,711.88 and 126,743.65

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Solution

The fourth proportional to 505,819.60, 758,711.88 and 126,743.65 is: 190,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,819.60 : 758,711.88 = 126,743.65 : x
  2. Step 2: Convert to fraction form
    505,819.60/758,711.88 = 126,743.65/x
  3. Step 3: Cross multiply
    505,819.60x = 758,711.88 × 126,743.65
  4. Step 4: Simplify right side
    505,819.60x = 96,161,911,072.78
  5. Step 5: Solve for x
    x = 96,161,911,072.78/505,819.60
  6. Step 6: Final answer
    x = 190,111.08

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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.