Home / 658,015.07-987,022.48-358,747.31

Finding the Fourth Proportional to 658,015.07, 987,022.48 and 358,747.31

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Solution

The fourth proportional to 658,015.07, 987,022.48 and 358,747.31 is: 538,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,015.07 : 987,022.48 = 358,747.31 : x
  2. Step 2: Convert to fraction form
    658,015.07/987,022.48 = 358,747.31/x
  3. Step 3: Cross multiply
    658,015.07x = 987,022.48 × 358,747.31
  4. Step 4: Simplify right side
    658,015.07x = 354,091,659,609.53
  5. Step 5: Solve for x
    x = 354,091,659,609.53/658,015.07
  6. Step 6: Final answer
    x = 538,120.90

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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.