Home / 672,080.80-1,008,121.20-251,269.60

Finding the Fourth Proportional to 672,080.80, 1,008,121.20 and 251,269.60

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Solution

The fourth proportional to 672,080.80, 1,008,121.20 and 251,269.60 is: 376,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,080.80 : 1,008,121.20 = 251,269.60 : x
  2. Step 2: Convert to fraction form
    672,080.80/1,008,121.20 = 251,269.60/x
  3. Step 3: Cross multiply
    672,080.80x = 1,008,121.20 × 251,269.60
  4. Step 4: Simplify right side
    672,080.80x = 253,310,210,675.52
  5. Step 5: Solve for x
    x = 253,310,210,675.52/672,080.80
  6. Step 6: Final answer
    x = 376,904.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.