Home / 328,368-709,128

Finding the Third Proportional to 328,368 and 709,128

Calculator

Solution

The third proportional to 328,368 and 709,128 is: 1,531,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,368 : 709,128 = 709,128 : x
  2. Step 2: Convert to fraction form
    328,368/709,128 = 709,128/x
  3. Step 3: Cross multiply
    328,368x = 709,128 × 709,128
  4. Step 4: Simplify right side
    328,368x = 502,862,520,384
  5. Step 5: Solve for x
    x = 502,862,520,384/328,368
  6. Step 6: Final answer
    x = 1,531,399.28

Related Problems

Find third proportional to 164,184 and 354,564
Half scale
Find third proportional to 656,736 and 1,418,256
Double scale
Find third proportional to 328,370 and 709,132
Similar ratio
Find third proportional to 492,552 and 1,063,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.