Home / 361,747.12-498,635.76-285,142

Finding the Fourth Proportional to 361,747.12, 498,635.76 and 285,142

Calculator

Solution

The fourth proportional to 361,747.12, 498,635.76 and 285,142 is: 393,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,747.12 : 498,635.76 = 285,142 : x
  2. Step 2: Convert to fraction form
    361,747.12/498,635.76 = 285,142/x
  3. Step 3: Cross multiply
    361,747.12x = 498,635.76 × 285,142
  4. Step 4: Simplify right side
    361,747.12x = 142,181,997,877.92
  5. Step 5: Solve for x
    x = 142,181,997,877.92/361,747.12
  6. Step 6: Final answer
    x = 393,042.52

Related Problems

Find fourth proportional to 180,873.56, 249,317.88 and 142,571
Half scale
Find fourth proportional to 723,494.24, 997,271.52 and 570,284
Double scale
Find fourth proportional to 361,748.12, 498,637.14 and 285,143
Similar ratio
Find fourth proportional to 542,620.68, 747,953.64 and 427,713
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.