Home / 1,200,015.12-1,800,908.52-568,931.28

Finding the Fourth Proportional to 1,200,015.12, 1,800,908.52 and 568,931.28

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Solution

The fourth proportional to 1,200,015.12, 1,800,908.52 and 568,931.28 is: 853,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,015.12 : 1,800,908.52 = 568,931.28 : x
  2. Step 2: Convert to fraction form
    1,200,015.12/1,800,908.52 = 568,931.28/x
  3. Step 3: Cross multiply
    1,200,015.12x = 1,800,908.52 × 568,931.28
  4. Step 4: Simplify right side
    1,200,015.12x = 1,024,593,189,446.51
  5. Step 5: Solve for x
    x = 1,024,593,189,446.51/1,200,015.12
  6. Step 6: Final answer
    x = 853,816.90

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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.