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Finding the Fourth Proportional to 510,876.44, 705,031.38 and 284,521.94

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Solution

The fourth proportional to 510,876.44, 705,031.38 and 284,521.94 is: 392,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,876.44 : 705,031.38 = 284,521.94 : x
  2. Step 2: Convert to fraction form
    510,876.44/705,031.38 = 284,521.94/x
  3. Step 3: Cross multiply
    510,876.44x = 705,031.38 × 284,521.94
  4. Step 4: Simplify right side
    510,876.44x = 200,596,895,998.48
  5. Step 5: Solve for x
    x = 200,596,895,998.48/510,876.44
  6. Step 6: Final answer
    x = 392,652.47

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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.