Home / 685,724.40-1,029,277.80-331,023.60

Finding the Fourth Proportional to 685,724.40, 1,029,277.80 and 331,023.60

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Solution

The fourth proportional to 685,724.40, 1,029,277.80 and 331,023.60 is: 496,869.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,724.40 : 1,029,277.80 = 331,023.60 : x
  2. Step 2: Convert to fraction form
    685,724.40/1,029,277.80 = 331,023.60/x
  3. Step 3: Cross multiply
    685,724.40x = 1,029,277.80 × 331,023.60
  4. Step 4: Simplify right side
    685,724.40x = 340,715,242,756.08
  5. Step 5: Solve for x
    x = 340,715,242,756.08/685,724.40
  6. Step 6: Final answer
    x = 496,869.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.