Home / 1,100,643.24-1,518,904.26-641,745.30

Finding the Fourth Proportional to 1,100,643.24, 1,518,904.26 and 641,745.30

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Solution

The fourth proportional to 1,100,643.24, 1,518,904.26 and 641,745.30 is: 885,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,643.24 : 1,518,904.26 = 641,745.30 : x
  2. Step 2: Convert to fraction form
    1,100,643.24/1,518,904.26 = 641,745.30/x
  3. Step 3: Cross multiply
    1,100,643.24x = 1,518,904.26 × 641,745.30
  4. Step 4: Simplify right side
    1,100,643.24x = 974,749,670,004.98
  5. Step 5: Solve for x
    x = 974,749,670,004.98/1,100,643.24
  6. Step 6: Final answer
    x = 885,618.19

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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.