Home / 401,728.62-554,366.88-220,436.04

Finding the Fourth Proportional to 401,728.62, 554,366.88 and 220,436.04

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Solution

The fourth proportional to 401,728.62, 554,366.88 and 220,436.04 is: 304,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,728.62 : 554,366.88 = 220,436.04 : x
  2. Step 2: Convert to fraction form
    401,728.62/554,366.88 = 220,436.04/x
  3. Step 3: Cross multiply
    401,728.62x = 554,366.88 × 220,436.04
  4. Step 4: Simplify right side
    401,728.62x = 122,202,439,734.36
  5. Step 5: Solve for x
    x = 122,202,439,734.36/401,728.62
  6. Step 6: Final answer
    x = 304,191.52

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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.