Home / 398,784-860,184

Finding the Third Proportional to 398,784 and 860,184

Calculator

Solution

The third proportional to 398,784 and 860,184 is: 1,855,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,784 : 860,184 = 860,184 : x
  2. Step 2: Convert to fraction form
    398,784/860,184 = 860,184/x
  3. Step 3: Cross multiply
    398,784x = 860,184 × 860,184
  4. Step 4: Simplify right side
    398,784x = 739,916,513,856
  5. Step 5: Solve for x
    x = 739,916,513,856/398,784
  6. Step 6: Final answer
    x = 1,855,431.80

Related Problems

Find third proportional to 199,392 and 430,092
Half scale
Find third proportional to 797,568 and 1,720,368
Double scale
Find third proportional to 398,786 and 860,188
Similar ratio
Find third proportional to 598,176 and 1,290,276
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.