Home / 1,251,651.07-1,876,855.40-398,611.47

Finding the Fourth Proportional to 1,251,651.07, 1,876,855.40 and 398,611.47

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Solution

The fourth proportional to 1,251,651.07, 1,876,855.40 and 398,611.47 is: 597,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,651.07 : 1,876,855.40 = 398,611.47 : x
  2. Step 2: Convert to fraction form
    1,251,651.07/1,876,855.40 = 398,611.47/x
  3. Step 3: Cross multiply
    1,251,651.07x = 1,876,855.40 × 398,611.47
  4. Step 4: Simplify right side
    1,251,651.07x = 748,136,089,971.44
  5. Step 5: Solve for x
    x = 748,136,089,971.44/1,251,651.07
  6. Step 6: Final answer
    x = 597,719.37

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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.