Home / 789,251.60-1,183,963.80-764,368.40

Finding the Fourth Proportional to 789,251.60, 1,183,963.80 and 764,368.40

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Solution

The fourth proportional to 789,251.60, 1,183,963.80 and 764,368.40 is: 1,146,636.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,251.60 : 1,183,963.80 = 764,368.40 : x
  2. Step 2: Convert to fraction form
    789,251.60/1,183,963.80 = 764,368.40/x
  3. Step 3: Cross multiply
    789,251.60x = 1,183,963.80 × 764,368.40
  4. Step 4: Simplify right side
    789,251.60x = 904,984,515,463.92
  5. Step 5: Solve for x
    x = 904,984,515,463.92/789,251.60
  6. Step 6: Final answer
    x = 1,146,636.28

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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.