Home / 617,200.37-851,702.26-345,215.72

Finding the Fourth Proportional to 617,200.37, 851,702.26 and 345,215.72

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Solution

The fourth proportional to 617,200.37, 851,702.26 and 345,215.72 is: 476,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,200.37 : 851,702.26 = 345,215.72 : x
  2. Step 2: Convert to fraction form
    617,200.37/851,702.26 = 345,215.72/x
  3. Step 3: Cross multiply
    617,200.37x = 851,702.26 × 345,215.72
  4. Step 4: Simplify right side
    617,200.37x = 294,021,008,911.53
  5. Step 5: Solve for x
    x = 294,021,008,911.53/617,200.37
  6. Step 6: Final answer
    x = 476,378.54

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1.5x scale

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.