Home / 1,538,868.29-2,122,536.83-1,080,085.23

Finding the Fourth Proportional to 1,538,868.29, 2,122,536.83 and 1,080,085.23

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Solution

The fourth proportional to 1,538,868.29, 2,122,536.83 and 1,080,085.23 is: 1,489,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,868.29 : 2,122,536.83 = 1,080,085.23 : x
  2. Step 2: Convert to fraction form
    1,538,868.29/2,122,536.83 = 1,080,085.23/x
  3. Step 3: Cross multiply
    1,538,868.29x = 2,122,536.83 × 1,080,085.23
  4. Step 4: Simplify right side
    1,538,868.29x = 2,292,520,674,813.59
  5. Step 5: Solve for x
    x = 2,292,520,674,813.59/1,538,868.29
  6. Step 6: Final answer
    x = 1,489,744.57

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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.