Home / 1,305,910.03-1,802,119.83-782,916.32

Finding the Fourth Proportional to 1,305,910.03, 1,802,119.83 and 782,916.32

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Solution

The fourth proportional to 1,305,910.03, 1,802,119.83 and 782,916.32 is: 1,080,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,910.03 : 1,802,119.83 = 782,916.32 : x
  2. Step 2: Convert to fraction form
    1,305,910.03/1,802,119.83 = 782,916.32/x
  3. Step 3: Cross multiply
    1,305,910.03x = 1,802,119.83 × 782,916.32
  4. Step 4: Simplify right side
    1,305,910.03x = 1,410,909,025,502.63
  5. Step 5: Solve for x
    x = 1,410,909,025,502.63/1,305,910.03
  6. Step 6: Final answer
    x = 1,080,402.93

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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.