Home / 1,128,414.23-1,559,270.37-821,955.39

Finding the Fourth Proportional to 1,128,414.23, 1,559,270.37 and 821,955.39

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Solution

The fourth proportional to 1,128,414.23, 1,559,270.37 and 821,955.39 is: 1,135,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,414.23 : 1,559,270.37 = 821,955.39 : x
  2. Step 2: Convert to fraction form
    1,128,414.23/1,559,270.37 = 821,955.39/x
  3. Step 3: Cross multiply
    1,128,414.23x = 1,559,270.37 × 821,955.39
  4. Step 4: Simplify right side
    1,128,414.23x = 1,281,650,682,323.86
  5. Step 5: Solve for x
    x = 1,281,650,682,323.86/1,128,414.23
  6. Step 6: Final answer
    x = 1,135,798.05

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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.