Home / 1,426,814.62-1,969,003.62-782,221

Finding the Fourth Proportional to 1,426,814.62, 1,969,003.62 and 782,221

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Solution

The fourth proportional to 1,426,814.62, 1,969,003.62 and 782,221 is: 1,079,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,814.62 : 1,969,003.62 = 782,221 : x
  2. Step 2: Convert to fraction form
    1,426,814.62/1,969,003.62 = 782,221/x
  3. Step 3: Cross multiply
    1,426,814.62x = 1,969,003.62 × 782,221
  4. Step 4: Simplify right side
    1,426,814.62x = 1,540,195,980,640.02
  5. Step 5: Solve for x
    x = 1,540,195,980,640.02/1,426,814.62
  6. Step 6: Final answer
    x = 1,079,464.68

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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.