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Finding the Fourth Proportional to 643,773.02, 966,009.46 and 270,058.46

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Solution

The fourth proportional to 643,773.02, 966,009.46 and 270,058.46 is: 405,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,773.02 : 966,009.46 = 270,058.46 : x
  2. Step 2: Convert to fraction form
    643,773.02/966,009.46 = 270,058.46/x
  3. Step 3: Cross multiply
    643,773.02x = 966,009.46 × 270,058.46
  4. Step 4: Simplify right side
    643,773.02x = 260,879,027,113.03
  5. Step 5: Solve for x
    x = 260,879,027,113.03/643,773.02
  6. Step 6: Final answer
    x = 405,234.48

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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.