Home / 1,189,402.54-1,641,391.23-645,544.84

Finding the Fourth Proportional to 1,189,402.54, 1,641,391.23 and 645,544.84

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Solution

The fourth proportional to 1,189,402.54, 1,641,391.23 and 645,544.84 is: 890,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,402.54 : 1,641,391.23 = 645,544.84 : x
  2. Step 2: Convert to fraction form
    1,189,402.54/1,641,391.23 = 645,544.84/x
  3. Step 3: Cross multiply
    1,189,402.54x = 1,641,391.23 × 645,544.84
  4. Step 4: Simplify right side
    1,189,402.54x = 1,059,591,638,947.75
  5. Step 5: Solve for x
    x = 1,059,591,638,947.75/1,189,402.54
  6. Step 6: Final answer
    x = 890,860.41

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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.