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Finding the Fourth Proportional to 611,500.32, 843,832.80 and 339,551.64

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Solution

The fourth proportional to 611,500.32, 843,832.80 and 339,551.64 is: 468,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,500.32 : 843,832.80 = 339,551.64 : x
  2. Step 2: Convert to fraction form
    611,500.32/843,832.80 = 339,551.64/x
  3. Step 3: Cross multiply
    611,500.32x = 843,832.80 × 339,551.64
  4. Step 4: Simplify right side
    611,500.32x = 286,524,811,125.79
  5. Step 5: Solve for x
    x = 286,524,811,125.79/611,500.32
  6. Step 6: Final answer
    x = 468,560.36

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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.