Home / 958,142.37-1,321,023.34-631,404.57

Finding the Fourth Proportional to 958,142.37, 1,321,023.34 and 631,404.57

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Solution

The fourth proportional to 958,142.37, 1,321,023.34 and 631,404.57 is: 870,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,142.37 : 1,321,023.34 = 631,404.57 : x
  2. Step 2: Convert to fraction form
    958,142.37/1,321,023.34 = 631,404.57/x
  3. Step 3: Cross multiply
    958,142.37x = 1,321,023.34 × 631,404.57
  4. Step 4: Simplify right side
    958,142.37x = 834,100,179,695.76
  5. Step 5: Solve for x
    x = 834,100,179,695.76/958,142.37
  6. Step 6: Final answer
    x = 870,538.87

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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.