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Finding the Fourth Proportional to 607,628.72, 911,440.20 and 337,629.68

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Solution

The fourth proportional to 607,628.72, 911,440.20 and 337,629.68 is: 506,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,628.72 : 911,440.20 = 337,629.68 : x
  2. Step 2: Convert to fraction form
    607,628.72/911,440.20 = 337,629.68/x
  3. Step 3: Cross multiply
    607,628.72x = 911,440.20 × 337,629.68
  4. Step 4: Simplify right side
    607,628.72x = 307,729,263,065.14
  5. Step 5: Solve for x
    x = 307,729,263,065.14/607,628.72
  6. Step 6: Final answer
    x = 506,442.92

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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.