Home / 428,798.72-643,228.80-113,252.48

Finding the Fourth Proportional to 428,798.72, 643,228.80 and 113,252.48

Calculator

Solution

The fourth proportional to 428,798.72, 643,228.80 and 113,252.48 is: 169,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,798.72 : 643,228.80 = 113,252.48 : x
  2. Step 2: Convert to fraction form
    428,798.72/643,228.80 = 113,252.48/x
  3. Step 3: Cross multiply
    428,798.72x = 643,228.80 × 113,252.48
  4. Step 4: Simplify right side
    428,798.72x = 72,847,256,807.42
  5. Step 5: Solve for x
    x = 72,847,256,807.42/428,798.72
  6. Step 6: Final answer
    x = 169,886.83

Related Problems

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.