Home / 658,201.03-987,489.69-388,575.18

Finding the Fourth Proportional to 658,201.03, 987,489.69 and 388,575.18

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Solution

The fourth proportional to 658,201.03, 987,489.69 and 388,575.18 is: 582,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,201.03 : 987,489.69 = 388,575.18 : x
  2. Step 2: Convert to fraction form
    658,201.03/987,489.69 = 388,575.18/x
  3. Step 3: Cross multiply
    658,201.03x = 987,489.69 × 388,575.18
  4. Step 4: Simplify right side
    658,201.03x = 383,713,984,039.89
  5. Step 5: Solve for x
    x = 383,713,984,039.89/658,201.03
  6. Step 6: Final answer
    x = 582,973.84

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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.