Home / 678,896-1,018,344-235,664

Finding the Fourth Proportional to 678,896, 1,018,344 and 235,664

Calculator

Solution

The fourth proportional to 678,896, 1,018,344 and 235,664 is: 353,496

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,896 : 1,018,344 = 235,664 : x
  2. Step 2: Convert to fraction form
    678,896/1,018,344 = 235,664/x
  3. Step 3: Cross multiply
    678,896x = 1,018,344 × 235,664
  4. Step 4: Simplify right side
    678,896x = 239,987,020,416
  5. Step 5: Solve for x
    x = 239,987,020,416/678,896
  6. Step 6: Final answer
    x = 353,496

Related Problems

Find fourth proportional to 339,448, 509,172 and 117,832
Half scale
Find fourth proportional to 1,357,792, 2,036,688 and 471,328
Double scale
Find fourth proportional to 678,897, 1,018,345.50 and 235,665
Similar ratio
Find fourth proportional to 1,018,344, 1,527,516 and 353,496
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.