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Finding the Fourth Proportional to 449,699.65, 620,593.67 and 245,759.20

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Solution

The fourth proportional to 449,699.65, 620,593.67 and 245,759.20 is: 339,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,699.65 : 620,593.67 = 245,759.20 : x
  2. Step 2: Convert to fraction form
    449,699.65/620,593.67 = 245,759.20/x
  3. Step 3: Cross multiply
    449,699.65x = 620,593.67 × 245,759.20
  4. Step 4: Simplify right side
    449,699.65x = 152,516,603,864.26
  5. Step 5: Solve for x
    x = 152,516,603,864.26/449,699.65
  6. Step 6: Final answer
    x = 339,152.15

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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.