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Finding the Fourth Proportional to 480,433.65, 720,733.37 and 196,278.63

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Solution

The fourth proportional to 480,433.65, 720,733.37 and 196,278.63 is: 294,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,433.65 : 720,733.37 = 196,278.63 : x
  2. Step 2: Convert to fraction form
    480,433.65/720,733.37 = 196,278.63/x
  3. Step 3: Cross multiply
    480,433.65x = 720,733.37 × 196,278.63
  4. Step 4: Simplify right side
    480,433.65x = 141,464,557,477.49
  5. Step 5: Solve for x
    x = 141,464,557,477.49/480,433.65
  6. Step 6: Final answer
    x = 294,451.81

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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.