Home / 1,159,892.15-1,600,609.12-643,668.57

Finding the Fourth Proportional to 1,159,892.15, 1,600,609.12 and 643,668.57

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Solution

The fourth proportional to 1,159,892.15, 1,600,609.12 and 643,668.57 is: 888,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,892.15 : 1,600,609.12 = 643,668.57 : x
  2. Step 2: Convert to fraction form
    1,159,892.15/1,600,609.12 = 643,668.57/x
  3. Step 3: Cross multiply
    1,159,892.15x = 1,600,609.12 × 643,668.57
  4. Step 4: Simplify right side
    1,159,892.15x = 1,030,261,780,181.02
  5. Step 5: Solve for x
    x = 1,030,261,780,181.02/1,159,892.15
  6. Step 6: Final answer
    x = 888,239.29

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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.