Home / 358,976-557,392

Finding the Third Proportional to 358,976 and 557,392

Calculator

Solution

The third proportional to 358,976 and 557,392 is: 865,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,976 : 557,392 = 557,392 : x
  2. Step 2: Convert to fraction form
    358,976/557,392 = 557,392/x
  3. Step 3: Cross multiply
    358,976x = 557,392 × 557,392
  4. Step 4: Simplify right side
    358,976x = 310,685,841,664
  5. Step 5: Solve for x
    x = 310,685,841,664/358,976
  6. Step 6: Final answer
    x = 865,478.03

Related Problems

Find third proportional to 179,488 and 278,696
Half scale
Find third proportional to 717,952 and 1,114,784
Double scale
Find third proportional to 358,978 and 557,395
Similar ratio
Find third proportional to 538,464 and 836,088
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.