Home / 1,918,825.57-2,647,971.91-1,059,379.52

Finding the Fourth Proportional to 1,918,825.57, 2,647,971.91 and 1,059,379.52

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Solution

The fourth proportional to 1,918,825.57, 2,647,971.91 and 1,059,379.52 is: 1,461,939.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,825.57 : 2,647,971.91 = 1,059,379.52 : x
  2. Step 2: Convert to fraction form
    1,918,825.57/2,647,971.91 = 1,059,379.52/x
  3. Step 3: Cross multiply
    1,918,825.57x = 2,647,971.91 × 1,059,379.52
  4. Step 4: Simplify right side
    1,918,825.57x = 2,805,207,210,989.28
  5. Step 5: Solve for x
    x = 2,805,207,210,989.28/1,918,825.57
  6. Step 6: Final answer
    x = 1,461,939.66

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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.