Home / 958,143.37-1,321,024.72-631,405.57

Finding the Fourth Proportional to 958,143.37, 1,321,024.72 and 631,405.57

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Solution

The fourth proportional to 958,143.37, 1,321,024.72 and 631,405.57 is: 870,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,143.37 : 1,321,024.72 = 631,405.57 : x
  2. Step 2: Convert to fraction form
    958,143.37/1,321,024.72 = 631,405.57/x
  3. Step 3: Cross multiply
    958,143.37x = 1,321,024.72 × 631,405.57
  4. Step 4: Simplify right side
    958,143.37x = 834,102,366,315.69
  5. Step 5: Solve for x
    x = 834,102,366,315.69/958,143.37
  6. Step 6: Final answer
    x = 870,540.25

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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.