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Finding the Fourth Proportional to 519,213.51, 716,523.98 and 304,508.43

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Solution

The fourth proportional to 519,213.51, 716,523.98 and 304,508.43 is: 420,227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,213.51 : 716,523.98 = 304,508.43 : x
  2. Step 2: Convert to fraction form
    519,213.51/716,523.98 = 304,508.43/x
  3. Step 3: Cross multiply
    519,213.51x = 716,523.98 × 304,508.43
  4. Step 4: Simplify right side
    519,213.51x = 218,187,590,684.61
  5. Step 5: Solve for x
    x = 218,187,590,684.61/519,213.51
  6. Step 6: Final answer
    x = 420,227.11

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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.