Home / 278,390-606,964

Finding the Third Proportional to 278,390 and 606,964

Calculator

Solution

The third proportional to 278,390 and 606,964 is: 1,323,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,390 : 606,964 = 606,964 : x
  2. Step 2: Convert to fraction form
    278,390/606,964 = 606,964/x
  3. Step 3: Cross multiply
    278,390x = 606,964 × 606,964
  4. Step 4: Simplify right side
    278,390x = 368,405,297,296
  5. Step 5: Solve for x
    x = 368,405,297,296/278,390
  6. Step 6: Final answer
    x = 1,323,342.42

Related Problems

Find third proportional to 139,195 and 303,482
Half scale
Find third proportional to 556,780 and 1,213,928
Double scale
Find third proportional to 278,392 and 606,968
Similar ratio
Find third proportional to 417,585 and 910,446
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.