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Finding the Fourth Proportional to 392,037.60, 587,181.60 and 303,002.40

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Solution

The fourth proportional to 392,037.60, 587,181.60 and 303,002.40 is: 453,827.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,037.60 : 587,181.60 = 303,002.40 : x
  2. Step 2: Convert to fraction form
    392,037.60/587,181.60 = 303,002.40/x
  3. Step 3: Cross multiply
    392,037.60x = 587,181.60 × 303,002.40
  4. Step 4: Simplify right side
    392,037.60x = 177,917,434,035.84
  5. Step 5: Solve for x
    x = 177,917,434,035.84/392,037.60
  6. Step 6: Final answer
    x = 453,827.47

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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.