Home / 2,116,419.80-3,174,612.14-1,257,805.22

Finding the Fourth Proportional to 2,116,419.80, 3,174,612.14 and 1,257,805.22

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Solution

The fourth proportional to 2,116,419.80, 3,174,612.14 and 1,257,805.22 is: 1,886,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,419.80 : 3,174,612.14 = 1,257,805.22 : x
  2. Step 2: Convert to fraction form
    2,116,419.80/3,174,612.14 = 1,257,805.22/x
  3. Step 3: Cross multiply
    2,116,419.80x = 3,174,612.14 × 1,257,805.22
  4. Step 4: Simplify right side
    2,116,419.80x = 3,993,043,699,005.28
  5. Step 5: Solve for x
    x = 3,993,043,699,005.28/2,116,419.80
  6. Step 6: Final answer
    x = 1,886,697.39

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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.