Home / 505,818.47-758,710.19-126,742.52

Finding the Fourth Proportional to 505,818.47, 758,710.19 and 126,742.52

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Solution

The fourth proportional to 505,818.47, 758,710.19 and 126,742.52 is: 190,109.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,818.47 : 758,710.19 = 126,742.52 : x
  2. Step 2: Convert to fraction form
    505,818.47/758,710.19 = 126,742.52/x
  3. Step 3: Cross multiply
    505,818.47x = 758,710.19 × 126,742.52
  4. Step 4: Simplify right side
    505,818.47x = 96,160,843,643.91
  5. Step 5: Solve for x
    x = 96,160,843,643.91/505,818.47
  6. Step 6: Final answer
    x = 190,109.39

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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.