Home / 515,220-1,128,856

Finding the Third Proportional to 515,220 and 1,128,856

Calculator

Solution

The third proportional to 515,220 and 1,128,856 is: 2,473,343.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,220 : 1,128,856 = 1,128,856 : x
  2. Step 2: Convert to fraction form
    515,220/1,128,856 = 1,128,856/x
  3. Step 3: Cross multiply
    515,220x = 1,128,856 × 1,128,856
  4. Step 4: Simplify right side
    515,220x = 1,274,315,868,736
  5. Step 5: Solve for x
    x = 1,274,315,868,736/515,220
  6. Step 6: Final answer
    x = 2,473,343.17

Related Problems

Find third proportional to 257,610 and 564,428
Half scale
Find third proportional to 1,030,440 and 2,257,712
Double scale
Find third proportional to 515,222 and 1,128,860
Similar ratio
Find third proportional to 772,830 and 1,693,284
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.