Home / 829,485.60-1,244,228.40-331,207.20

Finding the Fourth Proportional to 829,485.60, 1,244,228.40 and 331,207.20

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Solution

The fourth proportional to 829,485.60, 1,244,228.40 and 331,207.20 is: 496,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,485.60 : 1,244,228.40 = 331,207.20 : x
  2. Step 2: Convert to fraction form
    829,485.60/1,244,228.40 = 331,207.20/x
  3. Step 3: Cross multiply
    829,485.60x = 1,244,228.40 × 331,207.20
  4. Step 4: Simplify right side
    829,485.60x = 412,097,404,524.48
  5. Step 5: Solve for x
    x = 412,097,404,524.48/829,485.60
  6. Step 6: Final answer
    x = 496,810.80

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Double scale
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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.