Home / 342,780-742,765

Finding the Third Proportional to 342,780 and 742,765

Calculator

Solution

The third proportional to 342,780 and 742,765 is: 1,609,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,780 : 742,765 = 742,765 : x
  2. Step 2: Convert to fraction form
    342,780/742,765 = 742,765/x
  3. Step 3: Cross multiply
    342,780x = 742,765 × 742,765
  4. Step 4: Simplify right side
    342,780x = 551,699,845,225
  5. Step 5: Solve for x
    x = 551,699,845,225/342,780
  6. Step 6: Final answer
    x = 1,609,486.68

Related Problems

Find third proportional to 171,390 and 371,382.50
Half scale
Find third proportional to 685,560 and 1,485,530
Double scale
Find third proportional to 342,782 and 742,769
Similar ratio
Find third proportional to 514,170 and 1,114,147.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.