Home / 789,022.60-1,182,756.30-389,336.20

Finding the Fourth Proportional to 789,022.60, 1,182,756.30 and 389,336.20

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Solution

The fourth proportional to 789,022.60, 1,182,756.30 and 389,336.20 is: 583,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,022.60 : 1,182,756.30 = 389,336.20 : x
  2. Step 2: Convert to fraction form
    789,022.60/1,182,756.30 = 389,336.20/x
  3. Step 3: Cross multiply
    789,022.60x = 1,182,756.30 × 389,336.20
  4. Step 4: Simplify right side
    789,022.60x = 460,489,843,368.06
  5. Step 5: Solve for x
    x = 460,489,843,368.06/789,022.60
  6. Step 6: Final answer
    x = 583,620.60

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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.