Home / 478,382-740,253

Finding the Third Proportional to 478,382 and 740,253

Calculator

Solution

The third proportional to 478,382 and 740,253 is: 1,145,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,382 : 740,253 = 740,253 : x
  2. Step 2: Convert to fraction form
    478,382/740,253 = 740,253/x
  3. Step 3: Cross multiply
    478,382x = 740,253 × 740,253
  4. Step 4: Simplify right side
    478,382x = 547,974,504,009
  5. Step 5: Solve for x
    x = 547,974,504,009/478,382
  6. Step 6: Final answer
    x = 1,145,474.75

Related Problems

Find third proportional to 239,191 and 370,126.50
Half scale
Find third proportional to 956,764 and 1,480,506
Double scale
Find third proportional to 478,384 and 740,256
Similar ratio
Find third proportional to 717,573 and 1,110,379.50
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.