Home / 789,861.68-1,090,009.44-427,285.46

Finding the Fourth Proportional to 789,861.68, 1,090,009.44 and 427,285.46

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Solution

The fourth proportional to 789,861.68, 1,090,009.44 and 427,285.46 is: 589,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,861.68 : 1,090,009.44 = 427,285.46 : x
  2. Step 2: Convert to fraction form
    789,861.68/1,090,009.44 = 427,285.46/x
  3. Step 3: Cross multiply
    789,861.68x = 1,090,009.44 × 427,285.46
  4. Step 4: Simplify right side
    789,861.68x = 465,745,184,974.74
  5. Step 5: Solve for x
    x = 465,745,184,974.74/789,861.68
  6. Step 6: Final answer
    x = 589,654.11

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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.