Home / 1,377,866.40-2,066,846.22-479,315.91

Finding the Fourth Proportional to 1,377,866.40, 2,066,846.22 and 479,315.91

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Solution

The fourth proportional to 1,377,866.40, 2,066,846.22 and 479,315.91 is: 718,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,866.40 : 2,066,846.22 = 479,315.91 : x
  2. Step 2: Convert to fraction form
    1,377,866.40/2,066,846.22 = 479,315.91/x
  3. Step 3: Cross multiply
    1,377,866.40x = 2,066,846.22 × 479,315.91
  4. Step 4: Simplify right side
    1,377,866.40x = 990,672,284,520.03
  5. Step 5: Solve for x
    x = 990,672,284,520.03/1,377,866.40
  6. Step 6: Final answer
    x = 718,990.09

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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.