Home / 357,040-521,877

Finding the Third Proportional to 357,040 and 521,877

Calculator

Solution

The third proportional to 357,040 and 521,877 is: 762,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,040 : 521,877 = 521,877 : x
  2. Step 2: Convert to fraction form
    357,040/521,877 = 521,877/x
  3. Step 3: Cross multiply
    357,040x = 521,877 × 521,877
  4. Step 4: Simplify right side
    357,040x = 272,355,603,129
  5. Step 5: Solve for x
    x = 272,355,603,129/357,040
  6. Step 6: Final answer
    x = 762,815.38

Related Problems

Find third proportional to 178,520 and 260,938.50
Half scale
Find third proportional to 714,080 and 1,043,754
Double scale
Find third proportional to 357,042 and 521,880
Similar ratio
Find third proportional to 535,560 and 782,815.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.