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Finding the Fourth Proportional to 528,425.36, 792,781.10 and 376,814.01

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Solution

The fourth proportional to 528,425.36, 792,781.10 and 376,814.01 is: 565,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,425.36 : 792,781.10 = 376,814.01 : x
  2. Step 2: Convert to fraction form
    528,425.36/792,781.10 = 376,814.01/x
  3. Step 3: Cross multiply
    528,425.36x = 792,781.10 × 376,814.01
  4. Step 4: Simplify right side
    528,425.36x = 298,731,025,343.21
  5. Step 5: Solve for x
    x = 298,731,025,343.21/528,425.36
  6. Step 6: Final answer
    x = 565,323.03

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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.