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Finding the Fourth Proportional to 515,644.23, 773,487.33 and 245,633.58

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Solution

The fourth proportional to 515,644.23, 773,487.33 and 245,633.58 is: 368,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,644.23 : 773,487.33 = 245,633.58 : x
  2. Step 2: Convert to fraction form
    515,644.23/773,487.33 = 245,633.58/x
  3. Step 3: Cross multiply
    515,644.23x = 773,487.33 × 245,633.58
  4. Step 4: Simplify right side
    515,644.23x = 189,994,461,952.54
  5. Step 5: Solve for x
    x = 189,994,461,952.54/515,644.23
  6. Step 6: Final answer
    x = 368,460.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.