Home / 476,628.94-657,745.20-258,835.48

Finding the Fourth Proportional to 476,628.94, 657,745.20 and 258,835.48

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Solution

The fourth proportional to 476,628.94, 657,745.20 and 258,835.48 is: 357,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,628.94 : 657,745.20 = 258,835.48 : x
  2. Step 2: Convert to fraction form
    476,628.94/657,745.20 = 258,835.48/x
  3. Step 3: Cross multiply
    476,628.94x = 657,745.20 × 258,835.48
  4. Step 4: Simplify right side
    476,628.94x = 170,247,794,559.70
  5. Step 5: Solve for x
    x = 170,247,794,559.70/476,628.94
  6. Step 6: Final answer
    x = 357,191.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.