Home / 1,189,401.93-1,641,376.31-645,537.74

Finding the Fourth Proportional to 1,189,401.93, 1,641,376.31 and 645,537.74

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Solution

The fourth proportional to 1,189,401.93, 1,641,376.31 and 645,537.74 is: 890,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,401.93 : 1,641,376.31 = 645,537.74 : x
  2. Step 2: Convert to fraction form
    1,189,401.93/1,641,376.31 = 645,537.74/x
  3. Step 3: Cross multiply
    1,189,401.93x = 1,641,376.31 × 645,537.74
  4. Step 4: Simplify right side
    1,189,401.93x = 1,059,570,342,212.37
  5. Step 5: Solve for x
    x = 1,059,570,342,212.37/1,189,401.93
  6. Step 6: Final answer
    x = 890,842.97

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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.