Home / 434,112.72-650,381.76-320,541.81

Finding the Fourth Proportional to 434,112.72, 650,381.76 and 320,541.81

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Solution

The fourth proportional to 434,112.72, 650,381.76 and 320,541.81 is: 480,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,112.72 : 650,381.76 = 320,541.81 : x
  2. Step 2: Convert to fraction form
    434,112.72/650,381.76 = 320,541.81/x
  3. Step 3: Cross multiply
    434,112.72x = 650,381.76 × 320,541.81
  4. Step 4: Simplify right side
    434,112.72x = 208,474,546,541.39
  5. Step 5: Solve for x
    x = 208,474,546,541.39/434,112.72
  6. Step 6: Final answer
    x = 480,231.37

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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.