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Finding the Fourth Proportional to 618,019.07, 927,627.76 and 298,396.34

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Solution

The fourth proportional to 618,019.07, 927,627.76 and 298,396.34 is: 447,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,019.07 : 927,627.76 = 298,396.34 : x
  2. Step 2: Convert to fraction form
    618,019.07/927,627.76 = 298,396.34/x
  3. Step 3: Cross multiply
    618,019.07x = 927,627.76 × 298,396.34
  4. Step 4: Simplify right side
    618,019.07x = 276,800,727,679.86
  5. Step 5: Solve for x
    x = 276,800,727,679.86/618,019.07
  6. Step 6: Final answer
    x = 447,883.80

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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.