Home / 1,189,825.32-1,641,958.94-645,961.10

Finding the Fourth Proportional to 1,189,825.32, 1,641,958.94 and 645,961.10

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Solution

The fourth proportional to 1,189,825.32, 1,641,958.94 and 645,961.10 is: 891,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,825.32 : 1,641,958.94 = 645,961.10 : x
  2. Step 2: Convert to fraction form
    1,189,825.32/1,641,958.94 = 645,961.10/x
  3. Step 3: Cross multiply
    1,189,825.32x = 1,641,958.94 × 645,961.10
  4. Step 4: Simplify right side
    1,189,825.32x = 1,060,641,591,597.63
  5. Step 5: Solve for x
    x = 1,060,641,591,597.63/1,189,825.32
  6. Step 6: Final answer
    x = 891,426.31

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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.