Home / 278,388-606,960

Finding the Third Proportional to 278,388 and 606,960

Calculator

Solution

The third proportional to 278,388 and 606,960 is: 1,323,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,388 : 606,960 = 606,960 : x
  2. Step 2: Convert to fraction form
    278,388/606,960 = 606,960/x
  3. Step 3: Cross multiply
    278,388x = 606,960 × 606,960
  4. Step 4: Simplify right side
    278,388x = 368,400,441,600
  5. Step 5: Solve for x
    x = 368,400,441,600/278,388
  6. Step 6: Final answer
    x = 1,323,334.49

Related Problems

Find third proportional to 139,194 and 303,480
Half scale
Find third proportional to 556,776 and 1,213,920
Double scale
Find third proportional to 278,390 and 606,964
Similar ratio
Find third proportional to 417,582 and 910,440
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.