Home / 478,416-740,298

Finding the Third Proportional to 478,416 and 740,298

Calculator

Solution

The third proportional to 478,416 and 740,298 is: 1,145,532.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,416 : 740,298 = 740,298 : x
  2. Step 2: Convert to fraction form
    478,416/740,298 = 740,298/x
  3. Step 3: Cross multiply
    478,416x = 740,298 × 740,298
  4. Step 4: Simplify right side
    478,416x = 548,041,128,804
  5. Step 5: Solve for x
    x = 548,041,128,804/478,416
  6. Step 6: Final answer
    x = 1,145,532.61

Related Problems

Find third proportional to 239,208 and 370,149
Half scale
Find third proportional to 956,832 and 1,480,596
Double scale
Find third proportional to 478,418 and 740,301
Similar ratio
Find third proportional to 717,624 and 1,110,447
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.