Home / 403,928-625,420

Finding the Third Proportional to 403,928 and 625,420

Calculator

Solution

The third proportional to 403,928 and 625,420 is: 968,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,928 : 625,420 = 625,420 : x
  2. Step 2: Convert to fraction form
    403,928/625,420 = 625,420/x
  3. Step 3: Cross multiply
    403,928x = 625,420 × 625,420
  4. Step 4: Simplify right side
    403,928x = 391,150,176,400
  5. Step 5: Solve for x
    x = 391,150,176,400/403,928
  6. Step 6: Final answer
    x = 968,366.09

Related Problems

Find third proportional to 201,964 and 312,710
Half scale
Find third proportional to 807,856 and 1,250,840
Double scale
Find third proportional to 403,930 and 625,423
Similar ratio
Find third proportional to 605,892 and 938,130
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.