Home / 808,082-1,212,298-309,446

Finding the Fourth Proportional to 808,082, 1,212,298 and 309,446

Calculator

Solution

The fourth proportional to 808,082, 1,212,298 and 309,446 is: 464,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,082 : 1,212,298 = 309,446 : x
  2. Step 2: Convert to fraction form
    808,082/1,212,298 = 309,446/x
  3. Step 3: Cross multiply
    808,082x = 1,212,298 × 309,446
  4. Step 4: Simplify right side
    808,082x = 375,140,766,908
  5. Step 5: Solve for x
    x = 375,140,766,908/808,082
  6. Step 6: Final answer
    x = 464,236.01

Related Problems

Find fourth proportional to 404,041, 606,149 and 154,723
Half scale
Find fourth proportional to 1,616,164, 2,424,596 and 618,892
Double scale
Find fourth proportional to 808,083, 1,212,299.50 and 309,447
Similar ratio
Find fourth proportional to 1,212,123, 1,818,447 and 464,169
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.