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Finding the Fourth Proportional to 484,566.73, 726,852.83 and 431,504.64

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Solution

The fourth proportional to 484,566.73, 726,852.83 and 431,504.64 is: 647,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,566.73 : 726,852.83 = 431,504.64 : x
  2. Step 2: Convert to fraction form
    484,566.73/726,852.83 = 431,504.64/x
  3. Step 3: Cross multiply
    484,566.73x = 726,852.83 × 431,504.64
  4. Step 4: Simplify right side
    484,566.73x = 313,640,368,742.13
  5. Step 5: Solve for x
    x = 313,640,368,742.13/484,566.73
  6. Step 6: Final answer
    x = 647,259.40

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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.