Home / 345,348-745,128

Finding the Third Proportional to 345,348 and 745,128

Calculator

Solution

The third proportional to 345,348 and 745,128 is: 1,607,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,348 : 745,128 = 745,128 : x
  2. Step 2: Convert to fraction form
    345,348/745,128 = 745,128/x
  3. Step 3: Cross multiply
    345,348x = 745,128 × 745,128
  4. Step 4: Simplify right side
    345,348x = 555,215,736,384
  5. Step 5: Solve for x
    x = 555,215,736,384/345,348
  6. Step 6: Final answer
    x = 1,607,699.30

Related Problems

Find third proportional to 172,674 and 372,564
Half scale
Find third proportional to 690,696 and 1,490,256
Double scale
Find third proportional to 345,350 and 745,132
Similar ratio
Find third proportional to 518,022 and 1,117,692
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.