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Finding the Fourth Proportional to 449,701.89, 620,590.22 and 245,752.83

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Solution

The fourth proportional to 449,701.89, 620,590.22 and 245,752.83 is: 339,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,701.89 : 620,590.22 = 245,752.83 : x
  2. Step 2: Convert to fraction form
    449,701.89/620,590.22 = 245,752.83/x
  3. Step 3: Cross multiply
    449,701.89x = 620,590.22 × 245,752.83
  4. Step 4: Simplify right side
    449,701.89x = 152,511,803,933.77
  5. Step 5: Solve for x
    x = 152,511,803,933.77/449,701.89
  6. Step 6: Final answer
    x = 339,139.79

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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.