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Finding the Fourth Proportional to 478,578.24, 717,881.31 and 179,001.68

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Solution

The fourth proportional to 478,578.24, 717,881.31 and 179,001.68 is: 268,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,578.24 : 717,881.31 = 179,001.68 : x
  2. Step 2: Convert to fraction form
    478,578.24/717,881.31 = 179,001.68/x
  3. Step 3: Cross multiply
    478,578.24x = 717,881.31 × 179,001.68
  4. Step 4: Simplify right side
    478,578.24x = 128,501,956,941.19
  5. Step 5: Solve for x
    x = 128,501,956,941.19/478,578.24
  6. Step 6: Final answer
    x = 268,507.73

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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.