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Finding the Fourth Proportional to 479,329.17, 661,713.95 and 298,099.48

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Solution

The fourth proportional to 479,329.17, 661,713.95 and 298,099.48 is: 411,526.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,329.17 : 661,713.95 = 298,099.48 : x
  2. Step 2: Convert to fraction form
    479,329.17/661,713.95 = 298,099.48/x
  3. Step 3: Cross multiply
    479,329.17x = 661,713.95 × 298,099.48
  4. Step 4: Simplify right side
    479,329.17x = 197,256,584,403.75
  5. Step 5: Solve for x
    x = 197,256,584,403.75/479,329.17
  6. Step 6: Final answer
    x = 411,526.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.