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Finding the Fourth Proportional to 606,543.72, 909,659.80 and 179,978.65

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Solution

The fourth proportional to 606,543.72, 909,659.80 and 179,978.65 is: 269,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,543.72 : 909,659.80 = 179,978.65 : x
  2. Step 2: Convert to fraction form
    606,543.72/909,659.80 = 179,978.65/x
  3. Step 3: Cross multiply
    606,543.72x = 909,659.80 × 179,978.65
  4. Step 4: Simplify right side
    606,543.72x = 163,719,340,714.09
  5. Step 5: Solve for x
    x = 163,719,340,714.09/606,543.72
  6. Step 6: Final answer
    x = 269,921.75

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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.