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Finding the Fourth Proportional to 3,276,288, 4,914,432 and 912,384

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Solution

The fourth proportional to 3,276,288, 4,914,432 and 912,384 is: 1,368,576

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276,288 : 4,914,432 = 912,384 : x
  2. Step 2: Convert to fraction form
    3,276,288/4,914,432 = 912,384/x
  3. Step 3: Cross multiply
    3,276,288x = 4,914,432 × 912,384
  4. Step 4: Simplify right side
    3,276,288x = 4,483,849,125,888
  5. Step 5: Solve for x
    x = 4,483,849,125,888/3,276,288
  6. Step 6: Final answer
    x = 1,368,576

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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.