Home / 383,070-574,605-120,414

Finding the Fourth Proportional to 383,070, 574,605 and 120,414

Calculator

Solution

The fourth proportional to 383,070, 574,605 and 120,414 is: 180,621

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,070 : 574,605 = 120,414 : x
  2. Step 2: Convert to fraction form
    383,070/574,605 = 120,414/x
  3. Step 3: Cross multiply
    383,070x = 574,605 × 120,414
  4. Step 4: Simplify right side
    383,070x = 69,190,486,470
  5. Step 5: Solve for x
    x = 69,190,486,470/383,070
  6. Step 6: Final answer
    x = 180,621

Related Problems

Find fourth proportional to 191,535, 287,302.50 and 60,207
Half scale
Find fourth proportional to 766,140, 1,149,210 and 240,828
Double scale
Find fourth proportional to 383,071, 574,606.50 and 120,415
Similar ratio
Find fourth proportional to 574,605, 861,907.50 and 180,621
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.