Home / 290,478-607,560

Finding the Third Proportional to 290,478 and 607,560

Calculator

Solution

The third proportional to 290,478 and 607,560 is: 1,270,764.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,478 : 607,560 = 607,560 : x
  2. Step 2: Convert to fraction form
    290,478/607,560 = 607,560/x
  3. Step 3: Cross multiply
    290,478x = 607,560 × 607,560
  4. Step 4: Simplify right side
    290,478x = 369,129,153,600
  5. Step 5: Solve for x
    x = 369,129,153,600/290,478
  6. Step 6: Final answer
    x = 1,270,764.58

Related Problems

Find third proportional to 145,239 and 303,780
Half scale
Find third proportional to 580,956 and 1,215,120
Double scale
Find third proportional to 290,480 and 607,564
Similar ratio
Find third proportional to 435,717 and 911,340
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.