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Finding the Fourth Proportional to 668,841.81, 1,003,260.04 and 242,277.83

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Solution

The fourth proportional to 668,841.81, 1,003,260.04 and 242,277.83 is: 363,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,841.81 : 1,003,260.04 = 242,277.83 : x
  2. Step 2: Convert to fraction form
    668,841.81/1,003,260.04 = 242,277.83/x
  3. Step 3: Cross multiply
    668,841.81x = 1,003,260.04 × 242,277.83
  4. Step 4: Simplify right side
    668,841.81x = 243,067,665,416.91
  5. Step 5: Solve for x
    x = 243,067,665,416.91/668,841.81
  6. Step 6: Final answer
    x = 363,415.78

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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.