Home / 358,972-783,138

Finding the Third Proportional to 358,972 and 783,138

Calculator

Solution

The third proportional to 358,972 and 783,138 is: 1,708,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,972 : 783,138 = 783,138 : x
  2. Step 2: Convert to fraction form
    358,972/783,138 = 783,138/x
  3. Step 3: Cross multiply
    358,972x = 783,138 × 783,138
  4. Step 4: Simplify right side
    358,972x = 613,305,127,044
  5. Step 5: Solve for x
    x = 613,305,127,044/358,972
  6. Step 6: Final answer
    x = 1,708,504.08

Related Problems

Find third proportional to 179,486 and 391,569
Half scale
Find third proportional to 717,944 and 1,566,276
Double scale
Find third proportional to 358,974 and 783,142
Similar ratio
Find third proportional to 538,458 and 1,174,707
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.