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Finding the Fourth Proportional to 528,732.72, 792,826.92 and 213,104.88

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Solution

The fourth proportional to 528,732.72, 792,826.92 and 213,104.88 is: 319,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,732.72 : 792,826.92 = 213,104.88 : x
  2. Step 2: Convert to fraction form
    528,732.72/792,826.92 = 213,104.88/x
  3. Step 3: Cross multiply
    528,732.72x = 792,826.92 × 213,104.88
  4. Step 4: Simplify right side
    528,732.72x = 168,955,285,647.37
  5. Step 5: Solve for x
    x = 168,955,285,647.37/528,732.72
  6. Step 6: Final answer
    x = 319,547.63

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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.