Home / 385,642-790,076

Finding the Third Proportional to 385,642 and 790,076

Calculator

Solution

The third proportional to 385,642 and 790,076 is: 1,618,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,642 : 790,076 = 790,076 : x
  2. Step 2: Convert to fraction form
    385,642/790,076 = 790,076/x
  3. Step 3: Cross multiply
    385,642x = 790,076 × 790,076
  4. Step 4: Simplify right side
    385,642x = 624,220,085,776
  5. Step 5: Solve for x
    x = 624,220,085,776/385,642
  6. Step 6: Final answer
    x = 1,618,651.72

Related Problems

Find third proportional to 192,821 and 395,038
Half scale
Find third proportional to 771,284 and 1,580,152
Double scale
Find third proportional to 385,644 and 790,080
Similar ratio
Find third proportional to 578,463 and 1,185,114
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.