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Finding the Fourth Proportional to 1,380,906, 2,071,384.92 and 383,659.92

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Solution

The fourth proportional to 1,380,906, 2,071,384.92 and 383,659.92 is: 575,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,906 : 2,071,384.92 = 383,659.92 : x
  2. Step 2: Convert to fraction form
    1,380,906/2,071,384.92 = 383,659.92/x
  3. Step 3: Cross multiply
    1,380,906x = 2,071,384.92 × 383,659.92
  4. Step 4: Simplify right side
    1,380,906x = 794,707,372,696.41
  5. Step 5: Solve for x
    x = 794,707,372,696.41/1,380,906
  6. Step 6: Final answer
    x = 575,497.08

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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.