Home / 1,378,079.55-2,067,395.26-771,730.15

Finding the Fourth Proportional to 1,378,079.55, 2,067,395.26 and 771,730.15

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Solution

The fourth proportional to 1,378,079.55, 2,067,395.26 and 771,730.15 is: 1,157,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,079.55 : 2,067,395.26 = 771,730.15 : x
  2. Step 2: Convert to fraction form
    1,378,079.55/2,067,395.26 = 771,730.15/x
  3. Step 3: Cross multiply
    1,378,079.55x = 2,067,395.26 × 771,730.15
  4. Step 4: Simplify right side
    1,378,079.55x = 1,595,471,250,164.14
  5. Step 5: Solve for x
    x = 1,595,471,250,164.14/1,378,079.55
  6. Step 6: Final answer
    x = 1,157,749.74

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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.