Home / 1,189,230.93-1,641,142.98-645,366.56

Finding the Fourth Proportional to 1,189,230.93, 1,641,142.98 and 645,366.56

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Solution

The fourth proportional to 1,189,230.93, 1,641,142.98 and 645,366.56 is: 890,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,230.93 : 1,641,142.98 = 645,366.56 : x
  2. Step 2: Convert to fraction form
    1,189,230.93/1,641,142.98 = 645,366.56/x
  3. Step 3: Cross multiply
    1,189,230.93x = 1,641,142.98 × 645,366.56
  4. Step 4: Simplify right side
    1,189,230.93x = 1,059,138,791,265.03
  5. Step 5: Solve for x
    x = 1,059,138,791,265.03/1,189,230.93
  6. Step 6: Final answer
    x = 890,608.18

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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.