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Finding the Fourth Proportional to 519,672.36, 717,168.30 and 298,909.24

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Solution

The fourth proportional to 519,672.36, 717,168.30 and 298,909.24 is: 412,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,672.36 : 717,168.30 = 298,909.24 : x
  2. Step 2: Convert to fraction form
    519,672.36/717,168.30 = 298,909.24/x
  3. Step 3: Cross multiply
    519,672.36x = 717,168.30 × 298,909.24
  4. Step 4: Simplify right side
    519,672.36x = 214,368,231,803.47
  5. Step 5: Solve for x
    x = 214,368,231,803.47/519,672.36
  6. Step 6: Final answer
    x = 412,506.51

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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.