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Finding the Fourth Proportional to 653,626.54, 901,864.70 and 381,570.96

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Solution

The fourth proportional to 653,626.54, 901,864.70 and 381,570.96 is: 526,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,626.54 : 901,864.70 = 381,570.96 : x
  2. Step 2: Convert to fraction form
    653,626.54/901,864.70 = 381,570.96/x
  3. Step 3: Cross multiply
    653,626.54x = 901,864.70 × 381,570.96
  4. Step 4: Simplify right side
    653,626.54x = 344,125,379,369.11
  5. Step 5: Solve for x
    x = 344,125,379,369.11/653,626.54
  6. Step 6: Final answer
    x = 526,486.24

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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.