Home / 979,974-1,469,961-315,126

Finding the Fourth Proportional to 979,974, 1,469,961 and 315,126

Calculator

Solution

The fourth proportional to 979,974, 1,469,961 and 315,126 is: 472,689

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,974 : 1,469,961 = 315,126 : x
  2. Step 2: Convert to fraction form
    979,974/1,469,961 = 315,126/x
  3. Step 3: Cross multiply
    979,974x = 1,469,961 × 315,126
  4. Step 4: Simplify right side
    979,974x = 463,222,930,086
  5. Step 5: Solve for x
    x = 463,222,930,086/979,974
  6. Step 6: Final answer
    x = 472,689

Related Problems

Find fourth proportional to 489,987, 734,980.50 and 157,563
Half scale
Find fourth proportional to 1,959,948, 2,939,922 and 630,252
Double scale
Find fourth proportional to 979,975, 1,469,962.50 and 315,127
Similar ratio
Find fourth proportional to 1,469,961, 2,204,941.50 and 472,689
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.