Home / 434,423.80-651,635.70-209,098

Finding the Fourth Proportional to 434,423.80, 651,635.70 and 209,098

Calculator

Solution

The fourth proportional to 434,423.80, 651,635.70 and 209,098 is: 313,647

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,423.80 : 651,635.70 = 209,098 : x
  2. Step 2: Convert to fraction form
    434,423.80/651,635.70 = 209,098/x
  3. Step 3: Cross multiply
    434,423.80x = 651,635.70 × 209,098
  4. Step 4: Simplify right side
    434,423.80x = 136,255,721,598.60
  5. Step 5: Solve for x
    x = 136,255,721,598.60/434,423.80
  6. Step 6: Final answer
    x = 313,647

Related Problems

Find fourth proportional to 217,211.90, 325,817.85 and 104,549
Half scale
Find fourth proportional to 868,847.60, 1,303,271.40 and 418,196
Double scale
Find fourth proportional to 434,424.80, 651,637.20 and 209,099
Similar ratio
Find fourth proportional to 651,635.70, 977,453.55 and 313,647
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.