Home / 1,287,698.88-1,931,891.84-446,249.92

Finding the Fourth Proportional to 1,287,698.88, 1,931,891.84 and 446,249.92

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Solution

The fourth proportional to 1,287,698.88, 1,931,891.84 and 446,249.92 is: 669,493.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,698.88 : 1,931,891.84 = 446,249.92 : x
  2. Step 2: Convert to fraction form
    1,287,698.88/1,931,891.84 = 446,249.92/x
  3. Step 3: Cross multiply
    1,287,698.88x = 1,931,891.84 × 446,249.92
  4. Step 4: Simplify right side
    1,287,698.88x = 862,106,579,048.65
  5. Step 5: Solve for x
    x = 862,106,579,048.65/1,287,698.88
  6. Step 6: Final answer
    x = 669,493.93

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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.