Home / 1,376,174.81-1,899,121.24-772,562.81

Finding the Fourth Proportional to 1,376,174.81, 1,899,121.24 and 772,562.81

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Solution

The fourth proportional to 1,376,174.81, 1,899,121.24 and 772,562.81 is: 1,066,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,174.81 : 1,899,121.24 = 772,562.81 : x
  2. Step 2: Convert to fraction form
    1,376,174.81/1,899,121.24 = 772,562.81/x
  3. Step 3: Cross multiply
    1,376,174.81x = 1,899,121.24 × 772,562.81
  4. Step 4: Simplify right side
    1,376,174.81x = 1,467,190,447,418.59
  5. Step 5: Solve for x
    x = 1,467,190,447,418.59/1,376,174.81
  6. Step 6: Final answer
    x = 1,066,136.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.