Home / 1,992,384-2,988,576-662,688

Finding the Fourth Proportional to 1,992,384, 2,988,576 and 662,688

Calculator

Solution

The fourth proportional to 1,992,384, 2,988,576 and 662,688 is: 994,032

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,384 : 2,988,576 = 662,688 : x
  2. Step 2: Convert to fraction form
    1,992,384/2,988,576 = 662,688/x
  3. Step 3: Cross multiply
    1,992,384x = 2,988,576 × 662,688
  4. Step 4: Simplify right side
    1,992,384x = 1,980,493,452,288
  5. Step 5: Solve for x
    x = 1,980,493,452,288/1,992,384
  6. Step 6: Final answer
    x = 994,032

Related Problems

Find fourth proportional to 996,192, 1,494,288 and 331,344
Half scale
Find fourth proportional to 3,984,768, 5,977,152 and 1,325,376
Double scale
Find fourth proportional to 1,992,385, 2,988,577.50 and 662,689
Similar ratio
Find fourth proportional to 2,988,576, 4,482,864 and 994,032
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.