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Finding the Fourth Proportional to 505,673.76, 756,864.72 and 372,501.60

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Solution

The fourth proportional to 505,673.76, 756,864.72 and 372,501.60 is: 557,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,673.76 : 756,864.72 = 372,501.60 : x
  2. Step 2: Convert to fraction form
    505,673.76/756,864.72 = 372,501.60/x
  3. Step 3: Cross multiply
    505,673.76x = 756,864.72 × 372,501.60
  4. Step 4: Simplify right side
    505,673.76x = 281,933,319,183.55
  5. Step 5: Solve for x
    x = 281,933,319,183.55/505,673.76
  6. Step 6: Final answer
    x = 557,539.94

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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.