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Finding the Fourth Proportional to 478,727.82, 718,109.96 and 179,176.86

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Solution

The fourth proportional to 478,727.82, 718,109.96 and 179,176.86 is: 268,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,727.82 : 718,109.96 = 179,176.86 : x
  2. Step 2: Convert to fraction form
    478,727.82/718,109.96 = 179,176.86/x
  3. Step 3: Cross multiply
    478,727.82x = 718,109.96 × 179,176.86
  4. Step 4: Simplify right side
    478,727.82x = 128,668,686,871.64
  5. Step 5: Solve for x
    x = 128,668,686,871.64/478,727.82
  6. Step 6: Final answer
    x = 268,772.11

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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.