Home / 1,928,015.40-2,892,023.10-729,976.80

Finding the Fourth Proportional to 1,928,015.40, 2,892,023.10 and 729,976.80

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Solution

The fourth proportional to 1,928,015.40, 2,892,023.10 and 729,976.80 is: 1,094,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,015.40 : 2,892,023.10 = 729,976.80 : x
  2. Step 2: Convert to fraction form
    1,928,015.40/2,892,023.10 = 729,976.80/x
  3. Step 3: Cross multiply
    1,928,015.40x = 2,892,023.10 × 729,976.80
  4. Step 4: Simplify right side
    1,928,015.40x = 2,111,109,768,064.08
  5. Step 5: Solve for x
    x = 2,111,109,768,064.08/1,928,015.40
  6. Step 6: Final answer
    x = 1,094,965.20

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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.