Home / 657,348-990,342

Finding the Third Proportional to 657,348 and 990,342

Calculator

Solution

The third proportional to 657,348 and 990,342 is: 1,492,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,348 : 990,342 = 990,342 : x
  2. Step 2: Convert to fraction form
    657,348/990,342 = 990,342/x
  3. Step 3: Cross multiply
    657,348x = 990,342 × 990,342
  4. Step 4: Simplify right side
    657,348x = 980,777,276,964
  5. Step 5: Solve for x
    x = 980,777,276,964/657,348
  6. Step 6: Final answer
    x = 1,492,021.39

Related Problems

Find third proportional to 328,674 and 495,171
Half scale
Find third proportional to 1,314,696 and 1,980,684
Double scale
Find third proportional to 657,350 and 990,345
Similar ratio
Find third proportional to 986,022 and 1,485,513
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.