Home / 278,304-609,120

Finding the Third Proportional to 278,304 and 609,120

Calculator

Solution

The third proportional to 278,304 and 609,120 is: 1,333,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,304 : 609,120 = 609,120 : x
  2. Step 2: Convert to fraction form
    278,304/609,120 = 609,120/x
  3. Step 3: Cross multiply
    278,304x = 609,120 × 609,120
  4. Step 4: Simplify right side
    278,304x = 371,027,174,400
  5. Step 5: Solve for x
    x = 371,027,174,400/278,304
  6. Step 6: Final answer
    x = 1,333,172.27

Related Problems

Find third proportional to 139,152 and 304,560
Half scale
Find third proportional to 556,608 and 1,218,240
Double scale
Find third proportional to 278,306 and 609,124
Similar ratio
Find third proportional to 417,456 and 913,680
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.