Home / 789,869.49-1,090,016.58-427,292.45

Finding the Fourth Proportional to 789,869.49, 1,090,016.58 and 427,292.45

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Solution

The fourth proportional to 789,869.49, 1,090,016.58 and 427,292.45 is: 589,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,869.49 : 1,090,016.58 = 427,292.45 : x
  2. Step 2: Convert to fraction form
    789,869.49/1,090,016.58 = 427,292.45/x
  3. Step 3: Cross multiply
    789,869.49x = 1,090,016.58 × 427,292.45
  4. Step 4: Simplify right side
    789,869.49x = 465,755,849,558.74
  5. Step 5: Solve for x
    x = 465,755,849,558.74/789,869.49
  6. Step 6: Final answer
    x = 589,661.78

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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.