Home / 1,405,899-1,940,176.68-862,335.12

Finding the Fourth Proportional to 1,405,899, 1,940,176.68 and 862,335.12

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Solution

The fourth proportional to 1,405,899, 1,940,176.68 and 862,335.12 is: 1,190,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,899 : 1,940,176.68 = 862,335.12 : x
  2. Step 2: Convert to fraction form
    1,405,899/1,940,176.68 = 862,335.12/x
  3. Step 3: Cross multiply
    1,405,899x = 1,940,176.68 × 862,335.12
  4. Step 4: Simplify right side
    1,405,899x = 1,673,082,490,169.00
  5. Step 5: Solve for x
    x = 1,673,082,490,169.00/1,405,899
  6. Step 6: Final answer
    x = 1,190,044.58

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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.