Home / 1,079,773.57-1,490,099.40-621,115.93

Finding the Fourth Proportional to 1,079,773.57, 1,490,099.40 and 621,115.93

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Solution

The fourth proportional to 1,079,773.57, 1,490,099.40 and 621,115.93 is: 857,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,773.57 : 1,490,099.40 = 621,115.93 : x
  2. Step 2: Convert to fraction form
    1,079,773.57/1,490,099.40 = 621,115.93/x
  3. Step 3: Cross multiply
    1,079,773.57x = 1,490,099.40 × 621,115.93
  4. Step 4: Simplify right side
    1,079,773.57x = 925,524,474,623.44
  5. Step 5: Solve for x
    x = 925,524,474,623.44/1,079,773.57
  6. Step 6: Final answer
    x = 857,146.81

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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.