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Finding the Fourth Proportional to 671,879.40, 927,214.82 and 365,964.98

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Solution

The fourth proportional to 671,879.40, 927,214.82 and 365,964.98 is: 505,043.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,879.40 : 927,214.82 = 365,964.98 : x
  2. Step 2: Convert to fraction form
    671,879.40/927,214.82 = 365,964.98/x
  3. Step 3: Cross multiply
    671,879.40x = 927,214.82 × 365,964.98
  4. Step 4: Simplify right side
    671,879.40x = 339,328,153,057.00
  5. Step 5: Solve for x
    x = 339,328,153,057.00/671,879.40
  6. Step 6: Final answer
    x = 505,043.25

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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.