Home / 2,019,405.40-3,028,221.78-756,347.20

Finding the Fourth Proportional to 2,019,405.40, 3,028,221.78 and 756,347.20

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Solution

The fourth proportional to 2,019,405.40, 3,028,221.78 and 756,347.20 is: 1,134,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,405.40 : 3,028,221.78 = 756,347.20 : x
  2. Step 2: Convert to fraction form
    2,019,405.40/3,028,221.78 = 756,347.20/x
  3. Step 3: Cross multiply
    2,019,405.40x = 3,028,221.78 × 756,347.20
  4. Step 4: Simplify right side
    2,019,405.40x = 2,290,387,064,282.02
  5. Step 5: Solve for x
    x = 2,290,387,064,282.02/2,019,405.40
  6. Step 6: Final answer
    x = 1,134,188.84

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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.