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Finding the Fourth Proportional to 519,888.84, 717,494.84 and 315,892.72

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Solution

The fourth proportional to 519,888.84, 717,494.84 and 315,892.72 is: 435,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,888.84 : 717,494.84 = 315,892.72 : x
  2. Step 2: Convert to fraction form
    519,888.84/717,494.84 = 315,892.72/x
  3. Step 3: Cross multiply
    519,888.84x = 717,494.84 × 315,892.72
  4. Step 4: Simplify right side
    519,888.84x = 226,651,396,593.57
  5. Step 5: Solve for x
    x = 226,651,396,593.57/519,888.84
  6. Step 6: Final answer
    x = 435,961.27

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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.