Home / 1,130,859.54-1,696,371.66-420,887.34

Finding the Fourth Proportional to 1,130,859.54, 1,696,371.66 and 420,887.34

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Solution

The fourth proportional to 1,130,859.54, 1,696,371.66 and 420,887.34 is: 631,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,859.54 : 1,696,371.66 = 420,887.34 : x
  2. Step 2: Convert to fraction form
    1,130,859.54/1,696,371.66 = 420,887.34/x
  3. Step 3: Cross multiply
    1,130,859.54x = 1,696,371.66 × 420,887.34
  4. Step 4: Simplify right side
    1,130,859.54x = 713,981,355,628.78
  5. Step 5: Solve for x
    x = 713,981,355,628.78/1,130,859.54
  6. Step 6: Final answer
    x = 631,361.66

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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.