Home / 1,230.60-1,845.87-500.00

Finding the Fourth Proportional to 1,230.60, 1,845.87 and 500.00

Calculator

Solution

The fourth proportional to 1,230.60, 1,845.87 and 500.00 is: 749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.60 : 1,845.87 = 500.00 : x
  2. Step 2: Convert to fraction form
    1,230.60/1,845.87 = 500.00/x
  3. Step 3: Cross multiply
    1,230.60x = 1,845.87 × 500.00
  4. Step 4: Simplify right side
    1,230.60x = 922,925.77
  5. Step 5: Solve for x
    x = 922,925.77/1,230.60
  6. Step 6: Final answer
    x = 749.98

Related Problems

Find fourth proportional to 615.30, 922.94 and 250.00
Half scale
Find fourth proportional to 2,461.20, 3,691.74 and 999.99
Double scale
Find fourth proportional to 1,231.60, 1,847.37 and 501
Similar ratio
Find fourth proportional to 1,845.90, 2,768.81 and 749.99
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.