Home / 1,478,688.90-2,039,814.92-1,284,660.64

Finding the Fourth Proportional to 1,478,688.90, 2,039,814.92 and 1,284,660.64

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Solution

The fourth proportional to 1,478,688.90, 2,039,814.92 and 1,284,660.64 is: 1,772,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,688.90 : 2,039,814.92 = 1,284,660.64 : x
  2. Step 2: Convert to fraction form
    1,478,688.90/2,039,814.92 = 1,284,660.64/x
  3. Step 3: Cross multiply
    1,478,688.90x = 2,039,814.92 × 1,284,660.64
  4. Step 4: Simplify right side
    1,478,688.90x = 2,620,469,940,608.75
  5. Step 5: Solve for x
    x = 2,620,469,940,608.75/1,478,688.90
  6. Step 6: Final answer
    x = 1,772,157.71

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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.