Home / 1,378,206.84-2,067,310.26-431,651.64

Finding the Fourth Proportional to 1,378,206.84, 2,067,310.26 and 431,651.64

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Solution

The fourth proportional to 1,378,206.84, 2,067,310.26 and 431,651.64 is: 647,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,206.84 : 2,067,310.26 = 431,651.64 : x
  2. Step 2: Convert to fraction form
    1,378,206.84/2,067,310.26 = 431,651.64/x
  3. Step 3: Cross multiply
    1,378,206.84x = 2,067,310.26 × 431,651.64
  4. Step 4: Simplify right side
    1,378,206.84x = 892,357,864,117.83
  5. Step 5: Solve for x
    x = 892,357,864,117.83/1,378,206.84
  6. Step 6: Final answer
    x = 647,477.46

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Double scale
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Similar ratio
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1.5x scale

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.