Home / 1,427,863.72-1,970,467.14-783,285.16

Finding the Fourth Proportional to 1,427,863.72, 1,970,467.14 and 783,285.16

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Solution

The fourth proportional to 1,427,863.72, 1,970,467.14 and 783,285.16 is: 1,080,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,863.72 : 1,970,467.14 = 783,285.16 : x
  2. Step 2: Convert to fraction form
    1,427,863.72/1,970,467.14 = 783,285.16/x
  3. Step 3: Cross multiply
    1,427,863.72x = 1,970,467.14 × 783,285.16
  4. Step 4: Simplify right side
    1,427,863.72x = 1,543,437,669,029.64
  5. Step 5: Solve for x
    x = 1,543,437,669,029.64/1,427,863.72
  6. Step 6: Final answer
    x = 1,080,941.86

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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.