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Finding the Fourth Proportional to 605,269.62, 907,378.47 and 305,500.50

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Solution

The fourth proportional to 605,269.62, 907,378.47 and 305,500.50 is: 457,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,269.62 : 907,378.47 = 305,500.50 : x
  2. Step 2: Convert to fraction form
    605,269.62/907,378.47 = 305,500.50/x
  3. Step 3: Cross multiply
    605,269.62x = 907,378.47 × 305,500.50
  4. Step 4: Simplify right side
    605,269.62x = 277,204,576,274.24
  5. Step 5: Solve for x
    x = 277,204,576,274.24/605,269.62
  6. Step 6: Final answer
    x = 457,985.28

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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.