Home / 808,088-1,212,307-309,452

Finding the Fourth Proportional to 808,088, 1,212,307 and 309,452

Calculator

Solution

The fourth proportional to 808,088, 1,212,307 and 309,452 is: 464,245.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,088 : 1,212,307 = 309,452 : x
  2. Step 2: Convert to fraction form
    808,088/1,212,307 = 309,452/x
  3. Step 3: Cross multiply
    808,088x = 1,212,307 × 309,452
  4. Step 4: Simplify right side
    808,088x = 375,150,825,764
  5. Step 5: Solve for x
    x = 375,150,825,764/808,088
  6. Step 6: Final answer
    x = 464,245.02

Related Problems

Find fourth proportional to 404,044, 606,153.50 and 154,726
Half scale
Find fourth proportional to 1,616,176, 2,424,614 and 618,904
Double scale
Find fourth proportional to 808,089, 1,212,308.50 and 309,453
Similar ratio
Find fourth proportional to 1,212,132, 1,818,460.50 and 464,178
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.