Home / 680,928.80-1,021,490.40-231,670.40

Finding the Fourth Proportional to 680,928.80, 1,021,490.40 and 231,670.40

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Solution

The fourth proportional to 680,928.80, 1,021,490.40 and 231,670.40 is: 347,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,928.80 : 1,021,490.40 = 231,670.40 : x
  2. Step 2: Convert to fraction form
    680,928.80/1,021,490.40 = 231,670.40/x
  3. Step 3: Cross multiply
    680,928.80x = 1,021,490.40 × 231,670.40
  4. Step 4: Simplify right side
    680,928.80x = 236,649,089,564.16
  5. Step 5: Solve for x
    x = 236,649,089,564.16/680,928.80
  6. Step 6: Final answer
    x = 347,538.67

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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.