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Finding the Fourth Proportional to 528,087.65, 792,131.48 and 291,891.65

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Solution

The fourth proportional to 528,087.65, 792,131.48 and 291,891.65 is: 437,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,087.65 : 792,131.48 = 291,891.65 : x
  2. Step 2: Convert to fraction form
    528,087.65/792,131.48 = 291,891.65/x
  3. Step 3: Cross multiply
    528,087.65x = 792,131.48 × 291,891.65
  4. Step 4: Simplify right side
    528,087.65x = 231,216,564,714.14
  5. Step 5: Solve for x
    x = 231,216,564,714.14/528,087.65
  6. Step 6: Final answer
    x = 437,837.48

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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.