Home / 282,780-615,312

Finding the Third Proportional to 282,780 and 615,312

Calculator

Solution

The third proportional to 282,780 and 615,312 is: 1,338,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,780 : 615,312 = 615,312 : x
  2. Step 2: Convert to fraction form
    282,780/615,312 = 615,312/x
  3. Step 3: Cross multiply
    282,780x = 615,312 × 615,312
  4. Step 4: Simplify right side
    282,780x = 378,608,857,344
  5. Step 5: Solve for x
    x = 378,608,857,344/282,780
  6. Step 6: Final answer
    x = 1,338,881.31

Related Problems

Find third proportional to 141,390 and 307,656
Half scale
Find third proportional to 565,560 and 1,230,624
Double scale
Find third proportional to 282,782 and 615,316
Similar ratio
Find third proportional to 424,170 and 922,968
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.