Home / 789,865.62-1,090,009.62-427,288.02

Finding the Fourth Proportional to 789,865.62, 1,090,009.62 and 427,288.02

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Solution

The fourth proportional to 789,865.62, 1,090,009.62 and 427,288.02 is: 589,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,865.62 : 1,090,009.62 = 427,288.02 : x
  2. Step 2: Convert to fraction form
    789,865.62/1,090,009.62 = 427,288.02/x
  3. Step 3: Cross multiply
    789,865.62x = 1,090,009.62 × 427,288.02
  4. Step 4: Simplify right side
    789,865.62x = 465,748,052,310.75
  5. Step 5: Solve for x
    x = 465,748,052,310.75/789,865.62
  6. Step 6: Final answer
    x = 589,654.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.