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Finding the Fourth Proportional to 671,558.14, 926,703.46 and 381,175.65

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Solution

The fourth proportional to 671,558.14, 926,703.46 and 381,175.65 is: 525,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,558.14 : 926,703.46 = 381,175.65 : x
  2. Step 2: Convert to fraction form
    671,558.14/926,703.46 = 381,175.65/x
  3. Step 3: Cross multiply
    671,558.14x = 926,703.46 × 381,175.65
  4. Step 4: Simplify right side
    671,558.14x = 353,236,790,520.81
  5. Step 5: Solve for x
    x = 353,236,790,520.81/671,558.14
  6. Step 6: Final answer
    x = 525,995.84

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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.