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Finding the Fourth Proportional to 1,241,754.22, 1,870,929.03 and 1,121,950.42

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Solution

The fourth proportional to 1,241,754.22, 1,870,929.03 and 1,121,950.42 is: 1,690,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,754.22 : 1,870,929.03 = 1,121,950.42 : x
  2. Step 2: Convert to fraction form
    1,241,754.22/1,870,929.03 = 1,121,950.42/x
  3. Step 3: Cross multiply
    1,241,754.22x = 1,870,929.03 × 1,121,950.42
  4. Step 4: Simplify right side
    1,241,754.22x = 2,099,089,605,388.94
  5. Step 5: Solve for x
    x = 2,099,089,605,388.94/1,241,754.22
  6. Step 6: Final answer
    x = 1,690,422.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.