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Finding the Fourth Proportional to 528,424.36, 792,779.60 and 376,813.01

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Solution

The fourth proportional to 528,424.36, 792,779.60 and 376,813.01 is: 565,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,424.36 : 792,779.60 = 376,813.01 : x
  2. Step 2: Convert to fraction form
    528,424.36/792,779.60 = 376,813.01/x
  3. Step 3: Cross multiply
    528,424.36x = 792,779.60 × 376,813.01
  4. Step 4: Simplify right side
    528,424.36x = 298,729,670,266.58
  5. Step 5: Solve for x
    x = 298,729,670,266.58/528,424.36
  6. Step 6: Final answer
    x = 565,321.54

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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.