Home / 378,960-547,488

Finding the Third Proportional to 378,960 and 547,488

Calculator

Solution

The third proportional to 378,960 and 547,488 is: 790,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,960 : 547,488 = 547,488 : x
  2. Step 2: Convert to fraction form
    378,960/547,488 = 547,488/x
  3. Step 3: Cross multiply
    378,960x = 547,488 × 547,488
  4. Step 4: Simplify right side
    378,960x = 299,743,110,144
  5. Step 5: Solve for x
    x = 299,743,110,144/378,960
  6. Step 6: Final answer
    x = 790,962.40

Related Problems

Find third proportional to 189,480 and 273,744
Half scale
Find third proportional to 757,920 and 1,094,976
Double scale
Find third proportional to 378,962 and 547,491
Similar ratio
Find third proportional to 568,440 and 821,232
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.