Home / 503,247-754,870.50-129,270

Finding the Fourth Proportional to 503,247, 754,870.50 and 129,270

Calculator

Solution

The fourth proportional to 503,247, 754,870.50 and 129,270 is: 193,905

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,247 : 754,870.50 = 129,270 : x
  2. Step 2: Convert to fraction form
    503,247/754,870.50 = 129,270/x
  3. Step 3: Cross multiply
    503,247x = 754,870.50 × 129,270
  4. Step 4: Simplify right side
    503,247x = 97,582,109,535
  5. Step 5: Solve for x
    x = 97,582,109,535/503,247
  6. Step 6: Final answer
    x = 193,905

Related Problems

Find fourth proportional to 251,623.50, 377,435.25 and 64,635
Half scale
Find fourth proportional to 1,006,494, 1,509,741 and 258,540
Double scale
Find fourth proportional to 503,248, 754,872 and 129,271
Similar ratio
Find fourth proportional to 754,870.50, 1,132,305.75 and 193,905
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.