Home / 479,090.72-661,118.10-297,798

Finding the Fourth Proportional to 479,090.72, 661,118.10 and 297,798

Calculator

Solution

The fourth proportional to 479,090.72, 661,118.10 and 297,798 is: 410,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,090.72 : 661,118.10 = 297,798 : x
  2. Step 2: Convert to fraction form
    479,090.72/661,118.10 = 297,798/x
  3. Step 3: Cross multiply
    479,090.72x = 661,118.10 × 297,798
  4. Step 4: Simplify right side
    479,090.72x = 196,879,647,943.80
  5. Step 5: Solve for x
    x = 196,879,647,943.80/479,090.72
  6. Step 6: Final answer
    x = 410,944.40

Related Problems

Find fourth proportional to 239,545.36, 330,559.05 and 148,899
Half scale
Find fourth proportional to 958,181.44, 1,322,236.20 and 595,596
Double scale
Find fourth proportional to 479,091.72, 661,119.48 and 297,799
Similar ratio
Find fourth proportional to 718,636.08, 991,677.15 and 446,697
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.