Home / 401,865.41-554,572.31-220,580.42

Finding the Fourth Proportional to 401,865.41, 554,572.31 and 220,580.42

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Solution

The fourth proportional to 401,865.41, 554,572.31 and 220,580.42 is: 304,399.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,865.41 : 554,572.31 = 220,580.42 : x
  2. Step 2: Convert to fraction form
    401,865.41/554,572.31 = 220,580.42/x
  3. Step 3: Cross multiply
    401,865.41x = 554,572.31 × 220,580.42
  4. Step 4: Simplify right side
    401,865.41x = 122,327,793,060.17
  5. Step 5: Solve for x
    x = 122,327,793,060.17/401,865.41
  6. Step 6: Final answer
    x = 304,399.91

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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.