Home / 620,635.18-931,025.68-221,332.72

Finding the Fourth Proportional to 620,635.18, 931,025.68 and 221,332.72

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Solution

The fourth proportional to 620,635.18, 931,025.68 and 221,332.72 is: 332,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,635.18 : 931,025.68 = 221,332.72 : x
  2. Step 2: Convert to fraction form
    620,635.18/931,025.68 = 221,332.72/x
  3. Step 3: Cross multiply
    620,635.18x = 931,025.68 × 221,332.72
  4. Step 4: Simplify right side
    620,635.18x = 206,066,446,144.25
  5. Step 5: Solve for x
    x = 206,066,446,144.25/620,635.18
  6. Step 6: Final answer
    x = 332,025.08

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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.