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Finding the Fourth Proportional to 388,956.48, 583,755.48 and 300,747.48

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Solution

The fourth proportional to 388,956.48, 583,755.48 and 300,747.48 is: 451,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,956.48 : 583,755.48 = 300,747.48 : x
  2. Step 2: Convert to fraction form
    388,956.48/583,755.48 = 300,747.48/x
  3. Step 3: Cross multiply
    388,956.48x = 583,755.48 × 300,747.48
  4. Step 4: Simplify right side
    388,956.48x = 175,562,989,546.19
  5. Step 5: Solve for x
    x = 175,562,989,546.19/388,956.48
  6. Step 6: Final answer
    x = 451,369.24

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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.