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Finding the Fourth Proportional to 377,804.80, 566,707.20 and 316,979.20

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Solution

The fourth proportional to 377,804.80, 566,707.20 and 316,979.20 is: 475,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,804.80 : 566,707.20 = 316,979.20 : x
  2. Step 2: Convert to fraction form
    377,804.80/566,707.20 = 316,979.20/x
  3. Step 3: Cross multiply
    377,804.80x = 566,707.20 × 316,979.20
  4. Step 4: Simplify right side
    377,804.80x = 179,634,394,890.24
  5. Step 5: Solve for x
    x = 179,634,394,890.24/377,804.80
  6. Step 6: Final answer
    x = 475,468.80

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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.