Home / 641,724-885,812.40-373,452

Finding the Fourth Proportional to 641,724, 885,812.40 and 373,452

Calculator

Solution

The fourth proportional to 641,724, 885,812.40 and 373,452 is: 515,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,724 : 885,812.40 = 373,452 : x
  2. Step 2: Convert to fraction form
    641,724/885,812.40 = 373,452/x
  3. Step 3: Cross multiply
    641,724x = 885,812.40 × 373,452
  4. Step 4: Simplify right side
    641,724x = 330,808,412,404.80
  5. Step 5: Solve for x
    x = 330,808,412,404.80/641,724
  6. Step 6: Final answer
    x = 515,499.52

Related Problems

Find fourth proportional to 320,862, 442,906.20 and 186,726
Half scale
Find fourth proportional to 1,283,448, 1,771,624.80 and 746,904
Double scale
Find fourth proportional to 641,725, 885,813.78 and 373,453
Similar ratio
Find fourth proportional to 962,586, 1,328,718.60 and 560,178
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.