Home / 407,342-608,280

Finding the Third Proportional to 407,342 and 608,280

Calculator

Solution

The third proportional to 407,342 and 608,280 is: 908,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,342 : 608,280 = 608,280 : x
  2. Step 2: Convert to fraction form
    407,342/608,280 = 608,280/x
  3. Step 3: Cross multiply
    407,342x = 608,280 × 608,280
  4. Step 4: Simplify right side
    407,342x = 370,004,558,400
  5. Step 5: Solve for x
    x = 370,004,558,400/407,342
  6. Step 6: Final answer
    x = 908,338.84

Related Problems

Find third proportional to 203,671 and 304,140
Half scale
Find third proportional to 814,684 and 1,216,560
Double scale
Find third proportional to 407,344 and 608,283
Similar ratio
Find third proportional to 611,013 and 912,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.