Home / 509,982.30-764,940.65-154,999.40

Finding the Fourth Proportional to 509,982.30, 764,940.65 and 154,999.40

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Solution

The fourth proportional to 509,982.30, 764,940.65 and 154,999.40 is: 232,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,982.30 : 764,940.65 = 154,999.40 : x
  2. Step 2: Convert to fraction form
    509,982.30/764,940.65 = 154,999.40/x
  3. Step 3: Cross multiply
    509,982.30x = 764,940.65 × 154,999.40
  4. Step 4: Simplify right side
    509,982.30x = 118,565,337,185.91
  5. Step 5: Solve for x
    x = 118,565,337,185.91/509,982.30
  6. Step 6: Final answer
    x = 232,489.12

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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.