Home / 685,810-1,507,367

Finding the Third Proportional to 685,810 and 1,507,367

Calculator

Solution

The third proportional to 685,810 and 1,507,367 is: 3,313,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,810 : 1,507,367 = 1,507,367 : x
  2. Step 2: Convert to fraction form
    685,810/1,507,367 = 1,507,367/x
  3. Step 3: Cross multiply
    685,810x = 1,507,367 × 1,507,367
  4. Step 4: Simplify right side
    685,810x = 2,272,155,272,689
  5. Step 5: Solve for x
    x = 2,272,155,272,689/685,810
  6. Step 6: Final answer
    x = 3,313,097.32

Related Problems

Find third proportional to 342,905 and 753,683.50
Half scale
Find third proportional to 1,371,620 and 3,014,734
Double scale
Find third proportional to 685,812 and 1,507,371
Similar ratio
Find third proportional to 1,028,715 and 2,261,050.50
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.