Home / 585,600-808,128-317,328

Finding the Fourth Proportional to 585,600, 808,128 and 317,328

Calculator

Solution

The fourth proportional to 585,600, 808,128 and 317,328 is: 437,912.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,600 : 808,128 = 317,328 : x
  2. Step 2: Convert to fraction form
    585,600/808,128 = 317,328/x
  3. Step 3: Cross multiply
    585,600x = 808,128 × 317,328
  4. Step 4: Simplify right side
    585,600x = 256,441,641,984
  5. Step 5: Solve for x
    x = 256,441,641,984/585,600
  6. Step 6: Final answer
    x = 437,912.64

Related Problems

Find fourth proportional to 292,800, 404,064 and 158,664
Half scale
Find fourth proportional to 1,171,200, 1,616,256 and 634,656
Double scale
Find fourth proportional to 585,601, 808,129.38 and 317,329
Similar ratio
Find fourth proportional to 878,400, 1,212,192 and 475,992
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.