Home / 949,720-1,424,580-284,872

Finding the Fourth Proportional to 949,720, 1,424,580 and 284,872

Calculator

Solution

The fourth proportional to 949,720, 1,424,580 and 284,872 is: 427,308

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,720 : 1,424,580 = 284,872 : x
  2. Step 2: Convert to fraction form
    949,720/1,424,580 = 284,872/x
  3. Step 3: Cross multiply
    949,720x = 1,424,580 × 284,872
  4. Step 4: Simplify right side
    949,720x = 405,822,953,760
  5. Step 5: Solve for x
    x = 405,822,953,760/949,720
  6. Step 6: Final answer
    x = 427,308

Related Problems

Find fourth proportional to 474,860, 712,290 and 142,436
Half scale
Find fourth proportional to 1,899,440, 2,849,160 and 569,744
Double scale
Find fourth proportional to 949,721, 1,424,581.50 and 284,873
Similar ratio
Find fourth proportional to 1,424,580, 2,136,870 and 427,308
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.