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Finding the Fourth Proportional to 672,396.10, 927,907.92 and 366,475.90

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Solution

The fourth proportional to 672,396.10, 927,907.92 and 366,475.90 is: 505,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,396.10 : 927,907.92 = 366,475.90 : x
  2. Step 2: Convert to fraction form
    672,396.10/927,907.92 = 366,475.90/x
  3. Step 3: Cross multiply
    672,396.10x = 927,907.92 × 366,475.90
  4. Step 4: Simplify right side
    672,396.10x = 340,055,890,099.13
  5. Step 5: Solve for x
    x = 340,055,890,099.13/672,396.10
  6. Step 6: Final answer
    x = 505,737.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.