Home / 400,930.31-553,283.78-239,785.33

Finding the Fourth Proportional to 400,930.31, 553,283.78 and 239,785.33

Calculator

Solution

The fourth proportional to 400,930.31, 553,283.78 and 239,785.33 is: 330,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,930.31 : 553,283.78 = 239,785.33 : x
  2. Step 2: Convert to fraction form
    400,930.31/553,283.78 = 239,785.33/x
  3. Step 3: Cross multiply
    400,930.31x = 553,283.78 × 239,785.33
  4. Step 4: Simplify right side
    400,930.31x = 132,669,331,188.81
  5. Step 5: Solve for x
    x = 132,669,331,188.81/400,930.31
  6. Step 6: Final answer
    x = 330,903.72

Related Problems

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.