Home / 789,888.61-1,090,043-427,311.62

Finding the Fourth Proportional to 789,888.61, 1,090,043 and 427,311.62

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Solution

The fourth proportional to 789,888.61, 1,090,043 and 427,311.62 is: 589,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,888.61 : 1,090,043 = 427,311.62 : x
  2. Step 2: Convert to fraction form
    789,888.61/1,090,043 = 427,311.62/x
  3. Step 3: Cross multiply
    789,888.61x = 1,090,043 × 427,311.62
  4. Step 4: Simplify right side
    789,888.61x = 465,788,034,749.45
  5. Step 5: Solve for x
    x = 465,788,034,749.45/789,888.61
  6. Step 6: Final answer
    x = 589,688.26

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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.