Home / 1,897,691.07-2,619,234.06-1,309,815.87

Finding the Fourth Proportional to 1,897,691.07, 2,619,234.06 and 1,309,815.87

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Solution

The fourth proportional to 1,897,691.07, 2,619,234.06 and 1,309,815.87 is: 1,807,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897,691.07 : 2,619,234.06 = 1,309,815.87 : x
  2. Step 2: Convert to fraction form
    1,897,691.07/2,619,234.06 = 1,309,815.87/x
  3. Step 3: Cross multiply
    1,897,691.07x = 2,619,234.06 × 1,309,815.87
  4. Step 4: Simplify right side
    1,897,691.07x = 3,430,714,339,032.53
  5. Step 5: Solve for x
    x = 3,430,714,339,032.53/1,897,691.07
  6. Step 6: Final answer
    x = 1,807,836.06

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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.