Home / 489,372-756,312

Finding the Third Proportional to 489,372 and 756,312

Calculator

Solution

The third proportional to 489,372 and 756,312 is: 1,168,860.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,372 : 756,312 = 756,312 : x
  2. Step 2: Convert to fraction form
    489,372/756,312 = 756,312/x
  3. Step 3: Cross multiply
    489,372x = 756,312 × 756,312
  4. Step 4: Simplify right side
    489,372x = 572,007,841,344
  5. Step 5: Solve for x
    x = 572,007,841,344/489,372
  6. Step 6: Final answer
    x = 1,168,860.99

Related Problems

Find third proportional to 244,686 and 378,156
Half scale
Find third proportional to 978,744 and 1,512,624
Double scale
Find third proportional to 489,374 and 756,315
Similar ratio
Find third proportional to 734,058 and 1,134,468
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.