Home / 476,563.20-657,659-258,772.15

Finding the Fourth Proportional to 476,563.20, 657,659 and 258,772.15

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Solution

The fourth proportional to 476,563.20, 657,659 and 258,772.15 is: 357,106.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,563.20 : 657,659 = 258,772.15 : x
  2. Step 2: Convert to fraction form
    476,563.20/657,659 = 258,772.15/x
  3. Step 3: Cross multiply
    476,563.20x = 657,659 × 258,772.15
  4. Step 4: Simplify right side
    476,563.20x = 170,183,833,396.85
  5. Step 5: Solve for x
    x = 170,183,833,396.85/476,563.20
  6. Step 6: Final answer
    x = 357,106.54

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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.