Home / 401,992.20-554,751.72-220,712.04

Finding the Fourth Proportional to 401,992.20, 554,751.72 and 220,712.04

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Solution

The fourth proportional to 401,992.20, 554,751.72 and 220,712.04 is: 304,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,992.20 : 554,751.72 = 220,712.04 : x
  2. Step 2: Convert to fraction form
    401,992.20/554,751.72 = 220,712.04/x
  3. Step 3: Cross multiply
    401,992.20x = 554,751.72 × 220,712.04
  4. Step 4: Simplify right side
    401,992.20x = 122,440,383,814.71
  5. Step 5: Solve for x
    x = 122,440,383,814.71/401,992.20
  6. Step 6: Final answer
    x = 304,583.98

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1.5x scale

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.