Home / 789,887.48-1,090,042.35-427,311.26

Finding the Fourth Proportional to 789,887.48, 1,090,042.35 and 427,311.26

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Solution

The fourth proportional to 789,887.48, 1,090,042.35 and 427,311.26 is: 589,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,887.48 : 1,090,042.35 = 427,311.26 : x
  2. Step 2: Convert to fraction form
    789,887.48/1,090,042.35 = 427,311.26/x
  3. Step 3: Cross multiply
    789,887.48x = 1,090,042.35 × 427,311.26
  4. Step 4: Simplify right side
    789,887.48x = 465,787,367,066.89
  5. Step 5: Solve for x
    x = 465,787,367,066.89/789,887.48
  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.