Home / 254,720-553,680

Finding the Third Proportional to 254,720 and 553,680

Calculator

Solution

The third proportional to 254,720 and 553,680 is: 1,203,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,720 : 553,680 = 553,680 : x
  2. Step 2: Convert to fraction form
    254,720/553,680 = 553,680/x
  3. Step 3: Cross multiply
    254,720x = 553,680 × 553,680
  4. Step 4: Simplify right side
    254,720x = 306,561,542,400
  5. Step 5: Solve for x
    x = 306,561,542,400/254,720
  6. Step 6: Final answer
    x = 1,203,523.64

Related Problems

Find third proportional to 127,360 and 276,840
Half scale
Find third proportional to 509,440 and 1,107,360
Double scale
Find third proportional to 254,722 and 553,684
Similar ratio
Find third proportional to 382,080 and 830,520
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.