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Finding the Fourth Proportional to 611,524.44, 843,875.28 and 339,609.60

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Solution

The fourth proportional to 611,524.44, 843,875.28 and 339,609.60 is: 468,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,524.44 : 843,875.28 = 339,609.60 : x
  2. Step 2: Convert to fraction form
    611,524.44/843,875.28 = 339,609.60/x
  3. Step 3: Cross multiply
    611,524.44x = 843,875.28 × 339,609.60
  4. Step 4: Simplify right side
    611,524.44x = 286,588,146,290.69
  5. Step 5: Solve for x
    x = 286,588,146,290.69/611,524.44
  6. Step 6: Final answer
    x = 468,645.45

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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.