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Finding the Fourth Proportional to 672,320.82, 927,779.26 and 366,391.01

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Solution

The fourth proportional to 672,320.82, 927,779.26 and 366,391.01 is: 505,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,320.82 : 927,779.26 = 366,391.01 : x
  2. Step 2: Convert to fraction form
    672,320.82/927,779.26 = 366,391.01/x
  3. Step 3: Cross multiply
    672,320.82x = 927,779.26 × 366,391.01
  4. Step 4: Simplify right side
    672,320.82x = 339,929,980,128.45
  5. Step 5: Solve for x
    x = 339,929,980,128.45/672,320.82
  6. Step 6: Final answer
    x = 505,606.80

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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.