Home / 1,021,460-1,532,190-321,044

Finding the Fourth Proportional to 1,021,460, 1,532,190 and 321,044

Calculator

Solution

The fourth proportional to 1,021,460, 1,532,190 and 321,044 is: 481,566

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,460 : 1,532,190 = 321,044 : x
  2. Step 2: Convert to fraction form
    1,021,460/1,532,190 = 321,044/x
  3. Step 3: Cross multiply
    1,021,460x = 1,532,190 × 321,044
  4. Step 4: Simplify right side
    1,021,460x = 491,900,406,360
  5. Step 5: Solve for x
    x = 491,900,406,360/1,021,460
  6. Step 6: Final answer
    x = 481,566

Related Problems

Find fourth proportional to 510,730, 766,095 and 160,522
Half scale
Find fourth proportional to 2,042,920, 3,064,380 and 642,088
Double scale
Find fourth proportional to 1,021,461, 1,532,191.50 and 321,045
Similar ratio
Find fourth proportional to 1,532,190, 2,298,285 and 481,566
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.