Home / 1,378,271.97-2,067,408.09-431,716.50

Finding the Fourth Proportional to 1,378,271.97, 2,067,408.09 and 431,716.50

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Solution

The fourth proportional to 1,378,271.97, 2,067,408.09 and 431,716.50 is: 647,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,271.97 : 2,067,408.09 = 431,716.50 : x
  2. Step 2: Convert to fraction form
    1,378,271.97/2,067,408.09 = 431,716.50/x
  3. Step 3: Cross multiply
    1,378,271.97x = 2,067,408.09 × 431,716.50
  4. Step 4: Simplify right side
    1,378,271.97x = 892,534,184,686.49
  5. Step 5: Solve for x
    x = 892,534,184,686.49/1,378,271.97
  6. Step 6: Final answer
    x = 647,574.79

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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.