Home / 1,383,742.26-1,909,602.81-810,806.58

Finding the Fourth Proportional to 1,383,742.26, 1,909,602.81 and 810,806.58

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Solution

The fourth proportional to 1,383,742.26, 1,909,602.81 and 810,806.58 is: 1,118,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,742.26 : 1,909,602.81 = 810,806.58 : x
  2. Step 2: Convert to fraction form
    1,383,742.26/1,909,602.81 = 810,806.58/x
  3. Step 3: Cross multiply
    1,383,742.26x = 1,909,602.81 × 810,806.58
  4. Step 4: Simplify right side
    1,383,742.26x = 1,548,318,523,534.49
  5. Step 5: Solve for x
    x = 1,548,318,523,534.49/1,383,742.26
  6. Step 6: Final answer
    x = 1,118,935.63

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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.