Home / 479,389.22-719,404.59-198,906.47

Finding the Fourth Proportional to 479,389.22, 719,404.59 and 198,906.47

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Solution

The fourth proportional to 479,389.22, 719,404.59 and 198,906.47 is: 298,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,389.22 : 719,404.59 = 198,906.47 : x
  2. Step 2: Convert to fraction form
    479,389.22/719,404.59 = 198,906.47/x
  3. Step 3: Cross multiply
    479,389.22x = 719,404.59 × 198,906.47
  4. Step 4: Simplify right side
    479,389.22x = 143,094,230,043.11
  5. Step 5: Solve for x
    x = 143,094,230,043.11/479,389.22
  6. Step 6: Final answer
    x = 298,492.80

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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.