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Finding the Fourth Proportional to 519,849.08, 717,310.86 and 293,489.72

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Solution

The fourth proportional to 519,849.08, 717,310.86 and 293,489.72 is: 404,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,849.08 : 717,310.86 = 293,489.72 : x
  2. Step 2: Convert to fraction form
    519,849.08/717,310.86 = 293,489.72/x
  3. Step 3: Cross multiply
    519,849.08x = 717,310.86 × 293,489.72
  4. Step 4: Simplify right side
    519,849.08x = 210,523,363,454.36
  5. Step 5: Solve for x
    x = 210,523,363,454.36/519,849.08
  6. Step 6: Final answer
    x = 404,970.16

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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.