Home / 728,274-1,092,411-229,638

Finding the Fourth Proportional to 728,274, 1,092,411 and 229,638

Calculator

Solution

The fourth proportional to 728,274, 1,092,411 and 229,638 is: 344,457

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,274 : 1,092,411 = 229,638 : x
  2. Step 2: Convert to fraction form
    728,274/1,092,411 = 229,638/x
  3. Step 3: Cross multiply
    728,274x = 1,092,411 × 229,638
  4. Step 4: Simplify right side
    728,274x = 250,859,077,218
  5. Step 5: Solve for x
    x = 250,859,077,218/728,274
  6. Step 6: Final answer
    x = 344,457

Related Problems

Find fourth proportional to 364,137, 546,205.50 and 114,819
Half scale
Find fourth proportional to 1,456,548, 2,184,822 and 459,276
Double scale
Find fourth proportional to 728,275, 1,092,412.50 and 229,639
Similar ratio
Find fourth proportional to 1,092,411, 1,638,616.50 and 344,457
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.