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Finding the Fourth Proportional to 2,914,477.30, 4,371,715.95 and 919,933.30

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Solution

The fourth proportional to 2,914,477.30, 4,371,715.95 and 919,933.30 is: 1,379,899.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914,477.30 : 4,371,715.95 = 919,933.30 : x
  2. Step 2: Convert to fraction form
    2,914,477.30/4,371,715.95 = 919,933.30/x
  3. Step 3: Cross multiply
    2,914,477.30x = 4,371,715.95 × 919,933.30
  4. Step 4: Simplify right side
    2,914,477.30x = 4,021,687,080,546.14
  5. Step 5: Solve for x
    x = 4,021,687,080,546.14/2,914,477.30
  6. Step 6: Final answer
    x = 1,379,899.95

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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.