Home / 1,189,401.58-1,641,375.80-645,537.38

Finding the Fourth Proportional to 1,189,401.58, 1,641,375.80 and 645,537.38

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Solution

The fourth proportional to 1,189,401.58, 1,641,375.80 and 645,537.38 is: 890,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,401.58 : 1,641,375.80 = 645,537.38 : x
  2. Step 2: Convert to fraction form
    1,189,401.58/1,641,375.80 = 645,537.38/x
  3. Step 3: Cross multiply
    1,189,401.58x = 1,641,375.80 × 645,537.38
  4. Step 4: Simplify right side
    1,189,401.58x = 1,059,569,431,037.81
  5. Step 5: Solve for x
    x = 1,059,569,431,037.81/1,189,401.58
  6. Step 6: Final answer
    x = 890,842.46

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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.