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Finding the Fourth Proportional to 1,216,692, 1,825,038 and 330,228

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Solution

The fourth proportional to 1,216,692, 1,825,038 and 330,228 is: 495,342

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,692 : 1,825,038 = 330,228 : x
  2. Step 2: Convert to fraction form
    1,216,692/1,825,038 = 330,228/x
  3. Step 3: Cross multiply
    1,216,692x = 1,825,038 × 330,228
  4. Step 4: Simplify right side
    1,216,692x = 602,678,648,664
  5. Step 5: Solve for x
    x = 602,678,648,664/1,216,692
  6. Step 6: Final answer
    x = 495,342

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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.