Home / 401,788.81-554,451.09-220,503.74

Finding the Fourth Proportional to 401,788.81, 554,451.09 and 220,503.74

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Solution

The fourth proportional to 401,788.81, 554,451.09 and 220,503.74 is: 304,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,788.81 : 554,451.09 = 220,503.74 : x
  2. Step 2: Convert to fraction form
    401,788.81/554,451.09 = 220,503.74/x
  3. Step 3: Cross multiply
    401,788.81x = 554,451.09 × 220,503.74
  4. Step 4: Simplify right side
    401,788.81x = 122,258,540,381.20
  5. Step 5: Solve for x
    x = 122,258,540,381.20/401,788.81
  6. Step 6: Final answer
    x = 304,285.58

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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.