Home / 499,470-811,488

Finding the Third Proportional to 499,470 and 811,488

Calculator

Solution

The third proportional to 499,470 and 811,488 is: 1,318,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,470 : 811,488 = 811,488 : x
  2. Step 2: Convert to fraction form
    499,470/811,488 = 811,488/x
  3. Step 3: Cross multiply
    499,470x = 811,488 × 811,488
  4. Step 4: Simplify right side
    499,470x = 658,512,774,144
  5. Step 5: Solve for x
    x = 658,512,774,144/499,470
  6. Step 6: Final answer
    x = 1,318,423.08

Related Problems

Find third proportional to 249,735 and 405,744
Half scale
Find third proportional to 998,940 and 1,622,976
Double scale
Find third proportional to 499,472 and 811,491
Similar ratio
Find third proportional to 749,205 and 1,217,232
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.