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Finding the Fourth Proportional to 438,699.08, 658,310.79 and 403,007.24

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Solution

The fourth proportional to 438,699.08, 658,310.79 and 403,007.24 is: 604,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,699.08 : 658,310.79 = 403,007.24 : x
  2. Step 2: Convert to fraction form
    438,699.08/658,310.79 = 403,007.24/x
  3. Step 3: Cross multiply
    438,699.08x = 658,310.79 × 403,007.24
  4. Step 4: Simplify right side
    438,699.08x = 265,304,014,540.12
  5. Step 5: Solve for x
    x = 265,304,014,540.12/438,699.08
  6. Step 6: Final answer
    x = 604,751.70

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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.