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Finding the Fourth Proportional to 672,321.45, 927,776.55 and 366,391.29

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Solution

The fourth proportional to 672,321.45, 927,776.55 and 366,391.29 is: 505,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,321.45 : 927,776.55 = 366,391.29 : x
  2. Step 2: Convert to fraction form
    672,321.45/927,776.55 = 366,391.29/x
  3. Step 3: Cross multiply
    672,321.45x = 927,776.55 × 366,391.29
  4. Step 4: Simplify right side
    672,321.45x = 339,929,246,986.25
  5. Step 5: Solve for x
    x = 339,929,246,986.25/672,321.45
  6. Step 6: Final answer
    x = 505,605.24

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1.5x scale

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.