Home / 930,690.40-1,396,035.60-868,021.60

Finding the Fourth Proportional to 930,690.40, 1,396,035.60 and 868,021.60

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Solution

The fourth proportional to 930,690.40, 1,396,035.60 and 868,021.60 is: 1,302,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,690.40 : 1,396,035.60 = 868,021.60 : x
  2. Step 2: Convert to fraction form
    930,690.40/1,396,035.60 = 868,021.60/x
  3. Step 3: Cross multiply
    930,690.40x = 1,396,035.60 × 868,021.60
  4. Step 4: Simplify right side
    930,690.40x = 1,211,789,055,168.96
  5. Step 5: Solve for x
    x = 1,211,789,055,168.96/930,690.40
  6. Step 6: Final answer
    x = 1,302,032.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.