Home / 426,913.14-640,480.32-227,069.04

Finding the Fourth Proportional to 426,913.14, 640,480.32 and 227,069.04

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Solution

The fourth proportional to 426,913.14, 640,480.32 and 227,069.04 is: 340,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,913.14 : 640,480.32 = 227,069.04 : x
  2. Step 2: Convert to fraction form
    426,913.14/640,480.32 = 227,069.04/x
  3. Step 3: Cross multiply
    426,913.14x = 640,480.32 × 227,069.04
  4. Step 4: Simplify right side
    426,913.14x = 145,433,251,401.29
  5. Step 5: Solve for x
    x = 145,433,251,401.29/426,913.14
  6. Step 6: Final answer
    x = 340,662.39

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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.