Home / 343,300-717,988

Finding the Third Proportional to 343,300 and 717,988

Calculator

Solution

The third proportional to 343,300 and 717,988 is: 1,501,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,300 : 717,988 = 717,988 : x
  2. Step 2: Convert to fraction form
    343,300/717,988 = 717,988/x
  3. Step 3: Cross multiply
    343,300x = 717,988 × 717,988
  4. Step 4: Simplify right side
    343,300x = 515,506,768,144
  5. Step 5: Solve for x
    x = 515,506,768,144/343,300
  6. Step 6: Final answer
    x = 1,501,621.81

Related Problems

Find third proportional to 171,650 and 358,994
Half scale
Find third proportional to 686,600 and 1,435,976
Double scale
Find third proportional to 343,302 and 717,992
Similar ratio
Find third proportional to 514,950 and 1,076,982
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.