Home / 312,176-683,816

Finding the Third Proportional to 312,176 and 683,816

Calculator

Solution

The third proportional to 312,176 and 683,816 is: 1,497,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,176 : 683,816 = 683,816 : x
  2. Step 2: Convert to fraction form
    312,176/683,816 = 683,816/x
  3. Step 3: Cross multiply
    312,176x = 683,816 × 683,816
  4. Step 4: Simplify right side
    312,176x = 467,604,321,856
  5. Step 5: Solve for x
    x = 467,604,321,856/312,176
  6. Step 6: Final answer
    x = 1,497,886.84

Related Problems

Find third proportional to 156,088 and 341,908
Half scale
Find third proportional to 624,352 and 1,367,632
Double scale
Find third proportional to 312,178 and 683,820
Similar ratio
Find third proportional to 468,264 and 1,025,724
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.