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Finding the Fourth Proportional to 436,755.78, 603,051.48 and 429,780.60

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Solution

The fourth proportional to 436,755.78, 603,051.48 and 429,780.60 is: 593,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,755.78 : 603,051.48 = 429,780.60 : x
  2. Step 2: Convert to fraction form
    436,755.78/603,051.48 = 429,780.60/x
  3. Step 3: Cross multiply
    436,755.78x = 603,051.48 × 429,780.60
  4. Step 4: Simplify right side
    436,755.78x = 259,179,826,905.29
  5. Step 5: Solve for x
    x = 259,179,826,905.29/436,755.78
  6. Step 6: Final answer
    x = 593,420.49

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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.