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Finding the Fourth Proportional to 536,511.72, 740,450.54 and 321,769.92

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Solution

The fourth proportional to 536,511.72, 740,450.54 and 321,769.92 is: 444,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,511.72 : 740,450.54 = 321,769.92 : x
  2. Step 2: Convert to fraction form
    536,511.72/740,450.54 = 321,769.92/x
  3. Step 3: Cross multiply
    536,511.72x = 740,450.54 × 321,769.92
  4. Step 4: Simplify right side
    536,511.72x = 238,254,709,410.91
  5. Step 5: Solve for x
    x = 238,254,709,410.91/536,511.72
  6. Step 6: Final answer
    x = 444,081.09

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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.