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Finding the Fourth Proportional to 484,530.60, 726,536.70 and 203,730.60

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Solution

The fourth proportional to 484,530.60, 726,536.70 and 203,730.60 is: 305,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,530.60 : 726,536.70 = 203,730.60 : x
  2. Step 2: Convert to fraction form
    484,530.60/726,536.70 = 203,730.60/x
  3. Step 3: Cross multiply
    484,530.60x = 726,536.70 × 203,730.60
  4. Step 4: Simplify right side
    484,530.60x = 148,017,757,813.02
  5. Step 5: Solve for x
    x = 148,017,757,813.02/484,530.60
  6. Step 6: Final answer
    x = 305,486.91

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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.