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Finding the Fourth Proportional to 611,504.12, 843,897.42 and 339,576.64

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Solution

The fourth proportional to 611,504.12, 843,897.42 and 339,576.64 is: 468,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,504.12 : 843,897.42 = 339,576.64 : x
  2. Step 2: Convert to fraction form
    611,504.12/843,897.42 = 339,576.64/x
  3. Step 3: Cross multiply
    611,504.12x = 843,897.42 × 339,576.64
  4. Step 4: Simplify right side
    611,504.12x = 286,567,845,319.84
  5. Step 5: Solve for x
    x = 286,567,845,319.84/611,504.12
  6. Step 6: Final answer
    x = 468,627.83

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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.