Home / 1,438,366.14-2,158,874.37-728,896.86

Finding the Fourth Proportional to 1,438,366.14, 2,158,874.37 and 728,896.86

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Solution

The fourth proportional to 1,438,366.14, 2,158,874.37 and 728,896.86 is: 1,094,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,366.14 : 2,158,874.37 = 728,896.86 : x
  2. Step 2: Convert to fraction form
    1,438,366.14/2,158,874.37 = 728,896.86/x
  3. Step 3: Cross multiply
    1,438,366.14x = 2,158,874.37 × 728,896.86
  4. Step 4: Simplify right side
    1,438,366.14x = 1,573,596,749,427.48
  5. Step 5: Solve for x
    x = 1,573,596,749,427.48/1,438,366.14
  6. Step 6: Final answer
    x = 1,094,016.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.