Home / 675.84-915.05

Finding the Third Proportional to 675.84 and 915.05

Calculator

Solution

The third proportional to 675.84 and 915.05 is: 1,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.84 : 915.05 = 915.05 : x
  2. Step 2: Convert to fraction form
    675.84/915.05 = 915.05/x
  3. Step 3: Cross multiply
    675.84x = 915.05 × 915.05
  4. Step 4: Simplify right side
    675.84x = 837,310.78
  5. Step 5: Solve for x
    x = 837,310.78/675.84
  6. Step 6: Final answer
    x = 1,238.91

Related Problems

Find third proportional to 337.92 and 457.52
Half scale
Find third proportional to 1,351.69 and 1,830.09
Double scale
Find third proportional to 678 and 918
Similar ratio
Find third proportional to 1,013.77 and 1,372.57
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.