Home / 456,493.20-684,739.80-314,775.60

Finding the Fourth Proportional to 456,493.20, 684,739.80 and 314,775.60

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Solution

The fourth proportional to 456,493.20, 684,739.80 and 314,775.60 is: 472,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,493.20 : 684,739.80 = 314,775.60 : x
  2. Step 2: Convert to fraction form
    456,493.20/684,739.80 = 314,775.60/x
  3. Step 3: Cross multiply
    456,493.20x = 684,739.80 × 314,775.60
  4. Step 4: Simplify right side
    456,493.20x = 215,539,381,388.88
  5. Step 5: Solve for x
    x = 215,539,381,388.88/456,493.20
  6. Step 6: Final answer
    x = 472,163.40

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Similar ratio
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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.