Home / 3,122,843.80-4,686,015.30-1,325,421.40

Finding the Fourth Proportional to 3,122,843.80, 4,686,015.30 and 1,325,421.40

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Solution

The fourth proportional to 3,122,843.80, 4,686,015.30 and 1,325,421.40 is: 1,988,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122,843.80 : 4,686,015.30 = 1,325,421.40 : x
  2. Step 2: Convert to fraction form
    3,122,843.80/4,686,015.30 = 1,325,421.40/x
  3. Step 3: Cross multiply
    3,122,843.80x = 4,686,015.30 × 1,325,421.40
  4. Step 4: Simplify right side
    3,122,843.80x = 6,210,944,959,347.42
  5. Step 5: Solve for x
    x = 6,210,944,959,347.42/3,122,843.80
  6. Step 6: Final answer
    x = 1,988,874.68

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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.