Home / 492,816.15-739,904.97-340,638.36

Finding the Fourth Proportional to 492,816.15, 739,904.97 and 340,638.36

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Solution

The fourth proportional to 492,816.15, 739,904.97 and 340,638.36 is: 511,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,816.15 : 739,904.97 = 340,638.36 : x
  2. Step 2: Convert to fraction form
    492,816.15/739,904.97 = 340,638.36/x
  3. Step 3: Cross multiply
    492,816.15x = 739,904.97 × 340,638.36
  4. Step 4: Simplify right side
    492,816.15x = 252,040,011,837.12
  5. Step 5: Solve for x
    x = 252,040,011,837.12/492,816.15
  6. Step 6: Final answer
    x = 511,428.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.