Home / 814,124.60-1,220,968.20-281,808.80

Finding the Fourth Proportional to 814,124.60, 1,220,968.20 and 281,808.80

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Solution

The fourth proportional to 814,124.60, 1,220,968.20 and 281,808.80 is: 422,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,124.60 : 1,220,968.20 = 281,808.80 : x
  2. Step 2: Convert to fraction form
    814,124.60/1,220,968.20 = 281,808.80/x
  3. Step 3: Cross multiply
    814,124.60x = 1,220,968.20 × 281,808.80
  4. Step 4: Simplify right side
    814,124.60x = 344,079,583,280.16
  5. Step 5: Solve for x
    x = 344,079,583,280.16/814,124.60
  6. Step 6: Final answer
    x = 422,637.50

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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.