Home / 690,903-1,036,354.50-296,919

Finding the Fourth Proportional to 690,903, 1,036,354.50 and 296,919

Calculator

Solution

The fourth proportional to 690,903, 1,036,354.50 and 296,919 is: 445,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,903 : 1,036,354.50 = 296,919 : x
  2. Step 2: Convert to fraction form
    690,903/1,036,354.50 = 296,919/x
  3. Step 3: Cross multiply
    690,903x = 1,036,354.50 × 296,919
  4. Step 4: Simplify right side
    690,903x = 307,713,341,785.50
  5. Step 5: Solve for x
    x = 307,713,341,785.50/690,903
  6. Step 6: Final answer
    x = 445,378.50

Related Problems

Find fourth proportional to 345,451.50, 518,177.25 and 148,459.50
Half scale
Find fourth proportional to 1,381,806, 2,072,709 and 593,838
Double scale
Find fourth proportional to 690,904, 1,036,356 and 296,920
Similar ratio
Find fourth proportional to 1,036,354.50, 1,554,531.75 and 445,378.50
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.