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Finding the Fourth Proportional to 611,562.59, 843,977.69 and 339,635.01

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Solution

The fourth proportional to 611,562.59, 843,977.69 and 339,635.01 is: 468,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,562.59 : 843,977.69 = 339,635.01 : x
  2. Step 2: Convert to fraction form
    611,562.59/843,977.69 = 339,635.01/x
  3. Step 3: Cross multiply
    611,562.59x = 843,977.69 × 339,635.01
  4. Step 4: Simplify right side
    611,562.59x = 286,644,371,086.37
  5. Step 5: Solve for x
    x = 286,644,371,086.37/611,562.59
  6. Step 6: Final answer
    x = 468,708.15

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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.