Home / 317,588-451,428

Finding the Third Proportional to 317,588 and 451,428

Calculator

Solution

The third proportional to 317,588 and 451,428 is: 641,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,588 : 451,428 = 451,428 : x
  2. Step 2: Convert to fraction form
    317,588/451,428 = 451,428/x
  3. Step 3: Cross multiply
    317,588x = 451,428 × 451,428
  4. Step 4: Simplify right side
    317,588x = 203,787,239,184
  5. Step 5: Solve for x
    x = 203,787,239,184/317,588
  6. Step 6: Final answer
    x = 641,671.72

Related Problems

Find third proportional to 158,794 and 225,714
Half scale
Find third proportional to 635,176 and 902,856
Double scale
Find third proportional to 317,590 and 451,431
Similar ratio
Find third proportional to 476,382 and 677,142
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.