Home / 480,941.74-720,845.77-196,456.78

Finding the Fourth Proportional to 480,941.74, 720,845.77 and 196,456.78

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Solution

The fourth proportional to 480,941.74, 720,845.77 and 196,456.78 is: 294,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,941.74 : 720,845.77 = 196,456.78 : x
  2. Step 2: Convert to fraction form
    480,941.74/720,845.77 = 196,456.78/x
  3. Step 3: Cross multiply
    480,941.74x = 720,845.77 × 196,456.78
  4. Step 4: Simplify right side
    480,941.74x = 141,615,038,850.82
  5. Step 5: Solve for x
    x = 141,615,038,850.82/480,941.74
  6. Step 6: Final answer
    x = 294,453.63

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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.