Home / 345,396-459,090

Finding the Third Proportional to 345,396 and 459,090

Calculator

Solution

The third proportional to 345,396 and 459,090 is: 610,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,396 : 459,090 = 459,090 : x
  2. Step 2: Convert to fraction form
    345,396/459,090 = 459,090/x
  3. Step 3: Cross multiply
    345,396x = 459,090 × 459,090
  4. Step 4: Simplify right side
    345,396x = 210,763,628,100
  5. Step 5: Solve for x
    x = 210,763,628,100/345,396
  6. Step 6: Final answer
    x = 610,208.65

Related Problems

Find third proportional to 172,698 and 229,545
Half scale
Find third proportional to 690,792 and 918,180
Double scale
Find third proportional to 345,398 and 459,093
Similar ratio
Find third proportional to 518,094 and 688,635
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.