Home / 684,720.40-1,027,080.60-446,774.80

Finding the Fourth Proportional to 684,720.40, 1,027,080.60 and 446,774.80

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Solution

The fourth proportional to 684,720.40, 1,027,080.60 and 446,774.80 is: 670,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,720.40 : 1,027,080.60 = 446,774.80 : x
  2. Step 2: Convert to fraction form
    684,720.40/1,027,080.60 = 446,774.80/x
  3. Step 3: Cross multiply
    684,720.40x = 1,027,080.60 × 446,774.80
  4. Step 4: Simplify right side
    684,720.40x = 458,873,729,648.88
  5. Step 5: Solve for x
    x = 458,873,729,648.88/684,720.40
  6. Step 6: Final answer
    x = 670,162.20

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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.