Home / 726,610.40-1,089,915.60-498,287.60

Finding the Fourth Proportional to 726,610.40, 1,089,915.60 and 498,287.60

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Solution

The fourth proportional to 726,610.40, 1,089,915.60 and 498,287.60 is: 747,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,610.40 : 1,089,915.60 = 498,287.60 : x
  2. Step 2: Convert to fraction form
    726,610.40/1,089,915.60 = 498,287.60/x
  3. Step 3: Cross multiply
    726,610.40x = 1,089,915.60 × 498,287.60
  4. Step 4: Simplify right side
    726,610.40x = 543,091,428,526.56
  5. Step 5: Solve for x
    x = 543,091,428,526.56/726,610.40
  6. Step 6: Final answer
    x = 747,431.40

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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.