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Finding the Fourth Proportional to 668,951.21, 923,155.09 and 363,027.53

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Solution

The fourth proportional to 668,951.21, 923,155.09 and 363,027.53 is: 500,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,951.21 : 923,155.09 = 363,027.53 : x
  2. Step 2: Convert to fraction form
    668,951.21/923,155.09 = 363,027.53/x
  3. Step 3: Cross multiply
    668,951.21x = 923,155.09 × 363,027.53
  4. Step 4: Simplify right side
    668,951.21x = 335,130,712,129.63
  5. Step 5: Solve for x
    x = 335,130,712,129.63/668,951.21
  6. Step 6: Final answer
    x = 500,979.30

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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.