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Finding the Fourth Proportional to 668,808.72, 1,003,209.64 and 236,846.64

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Solution

The fourth proportional to 668,808.72, 1,003,209.64 and 236,846.64 is: 355,268.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,808.72 : 1,003,209.64 = 236,846.64 : x
  2. Step 2: Convert to fraction form
    668,808.72/1,003,209.64 = 236,846.64/x
  3. Step 3: Cross multiply
    668,808.72x = 1,003,209.64 × 236,846.64
  4. Step 4: Simplify right side
    668,808.72x = 237,606,832,449.61
  5. Step 5: Solve for x
    x = 237,606,832,449.61/668,808.72
  6. Step 6: Final answer
    x = 355,268.74

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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.