Home / 358,630-780,348

Finding the Third Proportional to 358,630 and 780,348

Calculator

Solution

The third proportional to 358,630 and 780,348 is: 1,697,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,630 : 780,348 = 780,348 : x
  2. Step 2: Convert to fraction form
    358,630/780,348 = 780,348/x
  3. Step 3: Cross multiply
    358,630x = 780,348 × 780,348
  4. Step 4: Simplify right side
    358,630x = 608,943,001,104
  5. Step 5: Solve for x
    x = 608,943,001,104/358,630
  6. Step 6: Final answer
    x = 1,697,970.06

Related Problems

Find third proportional to 179,315 and 390,174
Half scale
Find third proportional to 717,260 and 1,560,696
Double scale
Find third proportional to 358,632 and 780,352
Similar ratio
Find third proportional to 537,945 and 1,170,522
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.