Home / 391,258-857,522

Finding the Third Proportional to 391,258 and 857,522

Calculator

Solution

The third proportional to 391,258 and 857,522 is: 1,879,435.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,258 : 857,522 = 857,522 : x
  2. Step 2: Convert to fraction form
    391,258/857,522 = 857,522/x
  3. Step 3: Cross multiply
    391,258x = 857,522 × 857,522
  4. Step 4: Simplify right side
    391,258x = 735,343,980,484
  5. Step 5: Solve for x
    x = 735,343,980,484/391,258
  6. Step 6: Final answer
    x = 1,879,435.00

Related Problems

Find third proportional to 195,629 and 428,761
Half scale
Find third proportional to 782,516 and 1,715,044
Double scale
Find third proportional to 391,260 and 857,526
Similar ratio
Find third proportional to 586,887 and 1,286,283
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.