Home / 703,428-1,089,890

Finding the Third Proportional to 703,428 and 1,089,890

Calculator

Solution

The third proportional to 703,428 and 1,089,890 is: 1,688,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,428 : 1,089,890 = 1,089,890 : x
  2. Step 2: Convert to fraction form
    703,428/1,089,890 = 1,089,890/x
  3. Step 3: Cross multiply
    703,428x = 1,089,890 × 1,089,890
  4. Step 4: Simplify right side
    703,428x = 1,187,860,212,100
  5. Step 5: Solve for x
    x = 1,187,860,212,100/703,428
  6. Step 6: Final answer
    x = 1,688,673.48

Related Problems

Find third proportional to 351,714 and 544,945
Half scale
Find third proportional to 1,406,856 and 2,179,780
Double scale
Find third proportional to 703,430 and 1,089,893
Similar ratio
Find third proportional to 1,055,142 and 1,634,835
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.