Home / 319,266-688,360.50

Finding the Third Proportional to 319,266 and 688,360.50

Calculator

Solution

The third proportional to 319,266 and 688,360.50 is: 1,484,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,266 : 688,360.50 = 688,360.50 : x
  2. Step 2: Convert to fraction form
    319,266/688,360.50 = 688,360.50/x
  3. Step 3: Cross multiply
    319,266x = 688,360.50 × 688,360.50
  4. Step 4: Simplify right side
    319,266x = 473,840,177,960.25
  5. Step 5: Solve for x
    x = 473,840,177,960.25/319,266
  6. Step 6: Final answer
    x = 1,484,154.84

Related Problems

Find third proportional to 159,633 and 344,180.25
Half scale
Find third proportional to 638,532 and 1,376,721
Double scale
Find third proportional to 319,268 and 688,365
Similar ratio
Find third proportional to 478,899 and 1,032,540.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.