Home / 816,386.40-1,224,404.64-255,348

Finding the Fourth Proportional to 816,386.40, 1,224,404.64 and 255,348

Calculator

Solution

The fourth proportional to 816,386.40, 1,224,404.64 and 255,348 is: 382,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,386.40 : 1,224,404.64 = 255,348 : x
  2. Step 2: Convert to fraction form
    816,386.40/1,224,404.64 = 255,348/x
  3. Step 3: Cross multiply
    816,386.40x = 1,224,404.64 × 255,348
  4. Step 4: Simplify right side
    816,386.40x = 312,649,276,014.72
  5. Step 5: Solve for x
    x = 312,649,276,014.72/816,386.40
  6. Step 6: Final answer
    x = 382,967.28

Related Problems

Find fourth proportional to 408,193.20, 612,202.32 and 127,674
Half scale
Find fourth proportional to 1,632,772.80, 2,448,809.28 and 510,696
Double scale
Find fourth proportional to 816,387.40, 1,224,406.14 and 255,349
Similar ratio
Find fourth proportional to 1,224,579.60, 1,836,606.96 and 383,022
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.