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Finding the Fourth Proportional to 873,319.26, 1,309,978.78 and 242,233.07

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Solution

The fourth proportional to 873,319.26, 1,309,978.78 and 242,233.07 is: 363,349.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,319.26 : 1,309,978.78 = 242,233.07 : x
  2. Step 2: Convert to fraction form
    873,319.26/1,309,978.78 = 242,233.07/x
  3. Step 3: Cross multiply
    873,319.26x = 1,309,978.78 × 242,233.07
  4. Step 4: Simplify right side
    873,319.26x = 317,320,181,514.26
  5. Step 5: Solve for x
    x = 317,320,181,514.26/873,319.26
  6. Step 6: Final answer
    x = 363,349.57

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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.