Home / 401,931.04-554,629.87-220,642.71

Finding the Fourth Proportional to 401,931.04, 554,629.87 and 220,642.71

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Solution

The fourth proportional to 401,931.04, 554,629.87 and 220,642.71 is: 304,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,931.04 : 554,629.87 = 220,642.71 : x
  2. Step 2: Convert to fraction form
    401,931.04/554,629.87 = 220,642.71/x
  3. Step 3: Cross multiply
    401,931.04x = 554,629.87 × 220,642.71
  4. Step 4: Simplify right side
    401,931.04x = 122,375,037,563.75
  5. Step 5: Solve for x
    x = 122,375,037,563.75/401,931.04
  6. Step 6: Final answer
    x = 304,467.75

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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.