Home / 317,488-679,264

Finding the Third Proportional to 317,488 and 679,264

Calculator

Solution

The third proportional to 317,488 and 679,264 is: 1,453,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,488 : 679,264 = 679,264 : x
  2. Step 2: Convert to fraction form
    317,488/679,264 = 679,264/x
  3. Step 3: Cross multiply
    317,488x = 679,264 × 679,264
  4. Step 4: Simplify right side
    317,488x = 461,399,581,696
  5. Step 5: Solve for x
    x = 461,399,581,696/317,488
  6. Step 6: Final answer
    x = 1,453,281.96

Related Problems

Find third proportional to 158,744 and 339,632
Half scale
Find third proportional to 634,976 and 1,358,528
Double scale
Find third proportional to 317,490 and 679,268
Similar ratio
Find third proportional to 476,232 and 1,018,896
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.