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Finding the Fourth Proportional to 455,879.16, 683,604.09 and 266,394.29

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Solution

The fourth proportional to 455,879.16, 683,604.09 and 266,394.29 is: 399,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,879.16 : 683,604.09 = 266,394.29 : x
  2. Step 2: Convert to fraction form
    455,879.16/683,604.09 = 266,394.29/x
  3. Step 3: Cross multiply
    455,879.16x = 683,604.09 × 266,394.29
  4. Step 4: Simplify right side
    455,879.16x = 182,108,226,196.65
  5. Step 5: Solve for x
    x = 182,108,226,196.65/455,879.16
  6. Step 6: Final answer
    x = 399,466.00

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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.