Home / 427,838-657,674

Finding the Third Proportional to 427,838 and 657,674

Calculator

Solution

The third proportional to 427,838 and 657,674 is: 1,010,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,838 : 657,674 = 657,674 : x
  2. Step 2: Convert to fraction form
    427,838/657,674 = 657,674/x
  3. Step 3: Cross multiply
    427,838x = 657,674 × 657,674
  4. Step 4: Simplify right side
    427,838x = 432,535,090,276
  5. Step 5: Solve for x
    x = 432,535,090,276/427,838
  6. Step 6: Final answer
    x = 1,010,978.67

Related Problems

Find third proportional to 213,919 and 328,837
Half scale
Find third proportional to 855,676 and 1,315,348
Double scale
Find third proportional to 427,840 and 657,677
Similar ratio
Find third proportional to 641,757 and 986,511
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.