Home / 2,119,046.42-3,179,982.97-771,208.64

Finding the Fourth Proportional to 2,119,046.42, 3,179,982.97 and 771,208.64

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Solution

The fourth proportional to 2,119,046.42, 3,179,982.97 and 771,208.64 is: 1,157,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,046.42 : 3,179,982.97 = 771,208.64 : x
  2. Step 2: Convert to fraction form
    2,119,046.42/3,179,982.97 = 771,208.64/x
  3. Step 3: Cross multiply
    2,119,046.42x = 3,179,982.97 × 771,208.64
  4. Step 4: Simplify right side
    2,119,046.42x = 2,452,430,358,562.40
  5. Step 5: Solve for x
    x = 2,452,430,358,562.40/2,119,046.42
  6. Step 6: Final answer
    x = 1,157,327.34

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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.