Home / 300,120-457,803

Finding the Third Proportional to 300,120 and 457,803

Calculator

Solution

The third proportional to 300,120 and 457,803 is: 698,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,120 : 457,803 = 457,803 : x
  2. Step 2: Convert to fraction form
    300,120/457,803 = 457,803/x
  3. Step 3: Cross multiply
    300,120x = 457,803 × 457,803
  4. Step 4: Simplify right side
    300,120x = 209,583,586,809
  5. Step 5: Solve for x
    x = 209,583,586,809/300,120
  6. Step 6: Final answer
    x = 698,332.62

Related Problems

Find third proportional to 150,060 and 228,901.50
Half scale
Find third proportional to 600,240 and 915,606
Double scale
Find third proportional to 300,122 and 457,806
Similar ratio
Find third proportional to 450,180 and 686,704.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.