Home / 669,643.40-1,003,610.96-313,873.60

Finding the Fourth Proportional to 669,643.40, 1,003,610.96 and 313,873.60

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Solution

The fourth proportional to 669,643.40, 1,003,610.96 and 313,873.60 is: 470,410.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,643.40 : 1,003,610.96 = 313,873.60 : x
  2. Step 2: Convert to fraction form
    669,643.40/1,003,610.96 = 313,873.60/x
  3. Step 3: Cross multiply
    669,643.40x = 1,003,610.96 × 313,873.60
  4. Step 4: Simplify right side
    669,643.40x = 315,006,985,014.66
  5. Step 5: Solve for x
    x = 315,006,985,014.66/669,643.40
  6. Step 6: Final answer
    x = 470,410.05

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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.