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Finding the Fourth Proportional to 457,200.60, 685,800.90 and 297,768.30

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Solution

The fourth proportional to 457,200.60, 685,800.90 and 297,768.30 is: 446,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,200.60 : 685,800.90 = 297,768.30 : x
  2. Step 2: Convert to fraction form
    457,200.60/685,800.90 = 297,768.30/x
  3. Step 3: Cross multiply
    457,200.60x = 685,800.90 × 297,768.30
  4. Step 4: Simplify right side
    457,200.60x = 204,209,768,131.47
  5. Step 5: Solve for x
    x = 204,209,768,131.47/457,200.60
  6. Step 6: Final answer
    x = 446,652.45

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Similar ratio
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1.5x scale

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.