Home / 388,918.82-583,396.78-189,001.03

Finding the Fourth Proportional to 388,918.82, 583,396.78 and 189,001.03

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Solution

The fourth proportional to 388,918.82, 583,396.78 and 189,001.03 is: 283,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,918.82 : 583,396.78 = 189,001.03 : x
  2. Step 2: Convert to fraction form
    388,918.82/583,396.78 = 189,001.03/x
  3. Step 3: Cross multiply
    388,918.82x = 583,396.78 × 189,001.03
  4. Step 4: Simplify right side
    388,918.82x = 110,262,592,318.68
  5. Step 5: Solve for x
    x = 110,262,592,318.68/388,918.82
  6. Step 6: Final answer
    x = 283,510.56

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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.