Home / 678,010-920,814

Finding the Third Proportional to 678,010 and 920,814

Calculator

Solution

The third proportional to 678,010 and 920,814 is: 1,250,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,010 : 920,814 = 920,814 : x
  2. Step 2: Convert to fraction form
    678,010/920,814 = 920,814/x
  3. Step 3: Cross multiply
    678,010x = 920,814 × 920,814
  4. Step 4: Simplify right side
    678,010x = 847,898,422,596
  5. Step 5: Solve for x
    x = 847,898,422,596/678,010
  6. Step 6: Final answer
    x = 1,250,569.20

Related Problems

Find third proportional to 339,005 and 460,407
Half scale
Find third proportional to 1,356,020 and 1,841,628
Double scale
Find third proportional to 678,012 and 920,817
Similar ratio
Find third proportional to 1,017,015 and 1,381,221
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.