Home / 1,140,745.85-1,574,229.31-631,448.23

Finding the Fourth Proportional to 1,140,745.85, 1,574,229.31 and 631,448.23

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Solution

The fourth proportional to 1,140,745.85, 1,574,229.31 and 631,448.23 is: 871,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,745.85 : 1,574,229.31 = 631,448.23 : x
  2. Step 2: Convert to fraction form
    1,140,745.85/1,574,229.31 = 631,448.23/x
  3. Step 3: Cross multiply
    1,140,745.85x = 1,574,229.31 × 631,448.23
  4. Step 4: Simplify right side
    1,140,745.85x = 994,044,305,899.43
  5. Step 5: Solve for x
    x = 994,044,305,899.43/1,140,745.85
  6. Step 6: Final answer
    x = 871,398.57

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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.