Home / 401,720.86-554,334.41-240,571.76

Finding the Fourth Proportional to 401,720.86, 554,334.41 and 240,571.76

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Solution

The fourth proportional to 401,720.86, 554,334.41 and 240,571.76 is: 331,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,720.86 : 554,334.41 = 240,571.76 : x
  2. Step 2: Convert to fraction form
    401,720.86/554,334.41 = 240,571.76/x
  3. Step 3: Cross multiply
    401,720.86x = 554,334.41 × 240,571.76
  4. Step 4: Simplify right side
    401,720.86x = 133,357,206,629.53
  5. Step 5: Solve for x
    x = 133,357,206,629.53/401,720.86
  6. Step 6: Final answer
    x = 331,964.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.