Home / 612,421.50-919,243.50

Finding the Third Proportional to 612,421.50 and 919,243.50

Calculator

Solution

The third proportional to 612,421.50 and 919,243.50 is: 1,379,782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,421.50 : 919,243.50 = 919,243.50 : x
  2. Step 2: Convert to fraction form
    612,421.50/919,243.50 = 919,243.50/x
  3. Step 3: Cross multiply
    612,421.50x = 919,243.50 × 919,243.50
  4. Step 4: Simplify right side
    612,421.50x = 845,008,612,292.25
  5. Step 5: Solve for x
    x = 845,008,612,292.25/612,421.50
  6. Step 6: Final answer
    x = 1,379,782.74

Related Problems

Find third proportional to 306,210.75 and 459,621.75
Half scale
Find third proportional to 1,224,843 and 1,838,487
Double scale
Find third proportional to 612,424 and 919,247
Similar ratio
Find third proportional to 918,632.25 and 1,378,865.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.