Home / 889,667.76-1,334,225.63-320,974.93

Finding the Fourth Proportional to 889,667.76, 1,334,225.63 and 320,974.93

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Solution

The fourth proportional to 889,667.76, 1,334,225.63 and 320,974.93 is: 481,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,667.76 : 1,334,225.63 = 320,974.93 : x
  2. Step 2: Convert to fraction form
    889,667.76/1,334,225.63 = 320,974.93/x
  3. Step 3: Cross multiply
    889,667.76x = 1,334,225.63 × 320,974.93
  4. Step 4: Simplify right side
    889,667.76x = 428,252,969,917.45
  5. Step 5: Solve for x
    x = 428,252,969,917.45/889,667.76
  6. Step 6: Final answer
    x = 481,362.81

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1.5x scale

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.