Home / 327,416.40-451,217.16-286,866

Finding the Fourth Proportional to 327,416.40, 451,217.16 and 286,866

Calculator

Solution

The fourth proportional to 327,416.40, 451,217.16 and 286,866 is: 395,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,416.40 : 451,217.16 = 286,866 : x
  2. Step 2: Convert to fraction form
    327,416.40/451,217.16 = 286,866/x
  3. Step 3: Cross multiply
    327,416.40x = 451,217.16 × 286,866
  4. Step 4: Simplify right side
    327,416.40x = 129,438,861,820.56
  5. Step 5: Solve for x
    x = 129,438,861,820.56/327,416.40
  6. Step 6: Final answer
    x = 395,334.08

Related Problems

Find fourth proportional to 163,708.20, 225,608.58 and 143,433
Half scale
Find fourth proportional to 654,832.80, 902,434.32 and 573,732
Double scale
Find fourth proportional to 327,417.40, 451,218.54 and 286,867
Similar ratio
Find fourth proportional to 491,124.60, 676,825.74 and 430,299
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.