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Finding the Fourth Proportional to 504,999.48, 696,901.71 and 278,644.98

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Solution

The fourth proportional to 504,999.48, 696,901.71 and 278,644.98 is: 384,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,999.48 : 696,901.71 = 278,644.98 : x
  2. Step 2: Convert to fraction form
    504,999.48/696,901.71 = 278,644.98/x
  3. Step 3: Cross multiply
    504,999.48x = 696,901.71 × 278,644.98
  4. Step 4: Simplify right side
    504,999.48x = 194,188,163,044.92
  5. Step 5: Solve for x
    x = 194,188,163,044.92/504,999.48
  6. Step 6: Final answer
    x = 384,531.41

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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.