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Finding the Fourth Proportional to 528,424.43, 792,779.65 and 376,813.06

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Solution

The fourth proportional to 528,424.43, 792,779.65 and 376,813.06 is: 565,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,424.43 : 792,779.65 = 376,813.06 : x
  2. Step 2: Convert to fraction form
    528,424.43/792,779.65 = 376,813.06/x
  3. Step 3: Cross multiply
    528,424.43x = 792,779.65 × 376,813.06
  4. Step 4: Simplify right side
    528,424.43x = 298,729,722,898.25
  5. Step 5: Solve for x
    x = 298,729,722,898.25/528,424.43
  6. Step 6: Final answer
    x = 565,321.56

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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.