Home / 516,096-781,920

Finding the Third Proportional to 516,096 and 781,920

Calculator

Solution

The third proportional to 516,096 and 781,920 is: 1,184,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,096 : 781,920 = 781,920 : x
  2. Step 2: Convert to fraction form
    516,096/781,920 = 781,920/x
  3. Step 3: Cross multiply
    516,096x = 781,920 × 781,920
  4. Step 4: Simplify right side
    516,096x = 611,398,886,400
  5. Step 5: Solve for x
    x = 611,398,886,400/516,096
  6. Step 6: Final answer
    x = 1,184,661.16

Related Problems

Find third proportional to 258,048 and 390,960
Half scale
Find third proportional to 1,032,192 and 1,563,840
Double scale
Find third proportional to 516,098 and 781,923
Similar ratio
Find third proportional to 774,144 and 1,172,880
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.