Home / 868,121.60-1,302,571.20-394,563.20

Finding the Fourth Proportional to 868,121.60, 1,302,571.20 and 394,563.20

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Solution

The fourth proportional to 868,121.60, 1,302,571.20 and 394,563.20 is: 592,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,121.60 : 1,302,571.20 = 394,563.20 : x
  2. Step 2: Convert to fraction form
    868,121.60/1,302,571.20 = 394,563.20/x
  3. Step 3: Cross multiply
    868,121.60x = 1,302,571.20 × 394,563.20
  4. Step 4: Simplify right side
    868,121.60x = 513,946,660,899.84
  5. Step 5: Solve for x
    x = 513,946,660,899.84/868,121.60
  6. Step 6: Final answer
    x = 592,021.51

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1.5x scale

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.