Home / 789,863.39-1,090,008.17-427,286.35

Finding the Fourth Proportional to 789,863.39, 1,090,008.17 and 427,286.35

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Solution

The fourth proportional to 789,863.39, 1,090,008.17 and 427,286.35 is: 589,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,863.39 : 1,090,008.17 = 427,286.35 : x
  2. Step 2: Convert to fraction form
    789,863.39/1,090,008.17 = 427,286.35/x
  3. Step 3: Cross multiply
    789,863.39x = 1,090,008.17 × 427,286.35
  4. Step 4: Simplify right side
    789,863.39x = 465,745,609,530.07
  5. Step 5: Solve for x
    x = 465,745,609,530.07/789,863.39
  6. Step 6: Final answer
    x = 589,653.37

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Double scale
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1.5x scale

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.