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Finding the Fourth Proportional to 3,118,419, 4,677,628.68 and 754,515

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Solution

The fourth proportional to 3,118,419, 4,677,628.68 and 754,515 is: 1,131,772.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,419 : 4,677,628.68 = 754,515 : x
  2. Step 2: Convert to fraction form
    3,118,419/4,677,628.68 = 754,515/x
  3. Step 3: Cross multiply
    3,118,419x = 4,677,628.68 × 754,515
  4. Step 4: Simplify right side
    3,118,419x = 3,529,341,003,490.20
  5. Step 5: Solve for x
    x = 3,529,341,003,490.20/3,118,419
  6. Step 6: Final answer
    x = 1,131,772.54

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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.