Home / 425,520-921,960

Finding the Third Proportional to 425,520 and 921,960

Calculator

Solution

The third proportional to 425,520 and 921,960 is: 1,997,580

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,520 : 921,960 = 921,960 : x
  2. Step 2: Convert to fraction form
    425,520/921,960 = 921,960/x
  3. Step 3: Cross multiply
    425,520x = 921,960 × 921,960
  4. Step 4: Simplify right side
    425,520x = 850,010,241,600
  5. Step 5: Solve for x
    x = 850,010,241,600/425,520
  6. Step 6: Final answer
    x = 1,997,580

Related Problems

Find third proportional to 212,760 and 460,980
Half scale
Find third proportional to 851,040 and 1,843,920
Double scale
Find third proportional to 425,522 and 921,964
Similar ratio
Find third proportional to 638,280 and 1,382,940
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.