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Finding the Fourth Proportional to 653,677.56, 901,915.83 and 381,590.46

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Solution

The fourth proportional to 653,677.56, 901,915.83 and 381,590.46 is: 526,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,677.56 : 901,915.83 = 381,590.46 : x
  2. Step 2: Convert to fraction form
    653,677.56/901,915.83 = 381,590.46/x
  3. Step 3: Cross multiply
    653,677.56x = 901,915.83 × 381,590.46
  4. Step 4: Simplify right side
    653,677.56x = 344,162,476,450.98
  5. Step 5: Solve for x
    x = 344,162,476,450.98/653,677.56
  6. Step 6: Final answer
    x = 526,501.90

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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.