Home / 357,402-785,880

Finding the Third Proportional to 357,402 and 785,880

Calculator

Solution

The third proportional to 357,402 and 785,880 is: 1,728,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,402 : 785,880 = 785,880 : x
  2. Step 2: Convert to fraction form
    357,402/785,880 = 785,880/x
  3. Step 3: Cross multiply
    357,402x = 785,880 × 785,880
  4. Step 4: Simplify right side
    357,402x = 617,607,374,400
  5. Step 5: Solve for x
    x = 617,607,374,400/357,402
  6. Step 6: Final answer
    x = 1,728,046.78

Related Problems

Find third proportional to 178,701 and 392,940
Half scale
Find third proportional to 714,804 and 1,571,760
Double scale
Find third proportional to 357,404 and 785,884
Similar ratio
Find third proportional to 536,103 and 1,178,820
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.