Home / 1,378,079.62-2,067,395.36-771,730.22

Finding the Fourth Proportional to 1,378,079.62, 2,067,395.36 and 771,730.22

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Solution

The fourth proportional to 1,378,079.62, 2,067,395.36 and 771,730.22 is: 1,157,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,079.62 : 2,067,395.36 = 771,730.22 : x
  2. Step 2: Convert to fraction form
    1,378,079.62/2,067,395.36 = 771,730.22/x
  3. Step 3: Cross multiply
    1,378,079.62x = 2,067,395.36 × 771,730.22
  4. Step 4: Simplify right side
    1,378,079.62x = 1,595,471,477,309.62
  5. Step 5: Solve for x
    x = 1,595,471,477,309.62/1,378,079.62
  6. Step 6: Final answer
    x = 1,157,749.85

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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.