Home / 958,143.13-1,321,024.37-631,405.33

Finding the Fourth Proportional to 958,143.13, 1,321,024.37 and 631,405.33

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Solution

The fourth proportional to 958,143.13, 1,321,024.37 and 631,405.33 is: 870,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,143.13 : 1,321,024.37 = 631,405.33 : x
  2. Step 2: Convert to fraction form
    958,143.13/1,321,024.37 = 631,405.33/x
  3. Step 3: Cross multiply
    958,143.13x = 1,321,024.37 × 631,405.33
  4. Step 4: Simplify right side
    958,143.13x = 834,101,826,553.85
  5. Step 5: Solve for x
    x = 834,101,826,553.85/958,143.13
  6. Step 6: Final answer
    x = 870,539.90

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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.