Home / 425,218-657,987

Finding the Third Proportional to 425,218 and 657,987

Calculator

Solution

The third proportional to 425,218 and 657,987 is: 1,018,176.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,218 : 657,987 = 657,987 : x
  2. Step 2: Convert to fraction form
    425,218/657,987 = 657,987/x
  3. Step 3: Cross multiply
    425,218x = 657,987 × 657,987
  4. Step 4: Simplify right side
    425,218x = 432,946,892,169
  5. Step 5: Solve for x
    x = 432,946,892,169/425,218
  6. Step 6: Final answer
    x = 1,018,176.31

Related Problems

Find third proportional to 212,609 and 328,993.50
Half scale
Find third proportional to 850,436 and 1,315,974
Double scale
Find third proportional to 425,220 and 657,990
Similar ratio
Find third proportional to 637,827 and 986,980.50
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.