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Finding the Fourth Proportional to 515,977.56, 774,027.90 and 249,546.63

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Solution

The fourth proportional to 515,977.56, 774,027.90 and 249,546.63 is: 374,349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,977.56 : 774,027.90 = 249,546.63 : x
  2. Step 2: Convert to fraction form
    515,977.56/774,027.90 = 249,546.63/x
  3. Step 3: Cross multiply
    515,977.56x = 774,027.90 × 249,546.63
  4. Step 4: Simplify right side
    515,977.56x = 193,156,053,090.68
  5. Step 5: Solve for x
    x = 193,156,053,090.68/515,977.56
  6. Step 6: Final answer
    x = 374,349.71

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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.