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Finding the Fourth Proportional to 543,999.13, 750,405.90 and 339,695.35

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Solution

The fourth proportional to 543,999.13, 750,405.90 and 339,695.35 is: 468,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,999.13 : 750,405.90 = 339,695.35 : x
  2. Step 2: Convert to fraction form
    543,999.13/750,405.90 = 339,695.35/x
  3. Step 3: Cross multiply
    543,999.13x = 750,405.90 × 339,695.35
  4. Step 4: Simplify right side
    543,999.13x = 254,909,394,842.57
  5. Step 5: Solve for x
    x = 254,909,394,842.57/543,999.13
  6. Step 6: Final answer
    x = 468,584.20

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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.