Home / 426,933.72-640,511.28-227,089.62

Finding the Fourth Proportional to 426,933.72, 640,511.28 and 227,089.62

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Solution

The fourth proportional to 426,933.72, 640,511.28 and 227,089.62 is: 340,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,933.72 : 640,511.28 = 227,089.62 : x
  2. Step 2: Convert to fraction form
    426,933.72/640,511.28 = 227,089.62/x
  3. Step 3: Cross multiply
    426,933.72x = 640,511.28 × 227,089.62
  4. Step 4: Simplify right side
    426,933.72x = 145,453,463,180.91
  5. Step 5: Solve for x
    x = 145,453,463,180.91/426,933.72
  6. Step 6: Final answer
    x = 340,693.31

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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.