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Finding the Fourth Proportional to 1,336,446.28, 1,844,332.50 and 763,579.72

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Solution

The fourth proportional to 1,336,446.28, 1,844,332.50 and 763,579.72 is: 1,053,760.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,446.28 : 1,844,332.50 = 763,579.72 : x
  2. Step 2: Convert to fraction form
    1,336,446.28/1,844,332.50 = 763,579.72/x
  3. Step 3: Cross multiply
    1,336,446.28x = 1,844,332.50 × 763,579.72
  4. Step 4: Simplify right side
    1,336,446.28x = 1,408,294,893,936.90
  5. Step 5: Solve for x
    x = 1,408,294,893,936.90/1,336,446.28
  6. Step 6: Final answer
    x = 1,053,760.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.