Home / 545,728-841,920

Finding the Third Proportional to 545,728 and 841,920

Calculator

Solution

The third proportional to 545,728 and 841,920 is: 1,298,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,728 : 841,920 = 841,920 : x
  2. Step 2: Convert to fraction form
    545,728/841,920 = 841,920/x
  3. Step 3: Cross multiply
    545,728x = 841,920 × 841,920
  4. Step 4: Simplify right side
    545,728x = 708,829,286,400
  5. Step 5: Solve for x
    x = 708,829,286,400/545,728
  6. Step 6: Final answer
    x = 1,298,869.19

Related Problems

Find third proportional to 272,864 and 420,960
Half scale
Find third proportional to 1,091,456 and 1,683,840
Double scale
Find third proportional to 545,730 and 841,923
Similar ratio
Find third proportional to 818,592 and 1,262,880
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.