Home / 786,727.20-1,180,090.80-412,701.60

Finding the Fourth Proportional to 786,727.20, 1,180,090.80 and 412,701.60

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Solution

The fourth proportional to 786,727.20, 1,180,090.80 and 412,701.60 is: 619,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,727.20 : 1,180,090.80 = 412,701.60 : x
  2. Step 2: Convert to fraction form
    786,727.20/1,180,090.80 = 412,701.60/x
  3. Step 3: Cross multiply
    786,727.20x = 1,180,090.80 × 412,701.60
  4. Step 4: Simplify right side
    786,727.20x = 487,025,361,305.28
  5. Step 5: Solve for x
    x = 487,025,361,305.28/786,727.20
  6. Step 6: Final answer
    x = 619,052.40

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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.