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Finding the Fourth Proportional to 392,015.60, 587,148.60 and 302,567.30

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Solution

The fourth proportional to 392,015.60, 587,148.60 and 302,567.30 is: 453,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,015.60 : 587,148.60 = 302,567.30 : x
  2. Step 2: Convert to fraction form
    392,015.60/587,148.60 = 302,567.30/x
  3. Step 3: Cross multiply
    392,015.60x = 587,148.60 × 302,567.30
  4. Step 4: Simplify right side
    392,015.60x = 177,651,966,600.78
  5. Step 5: Solve for x
    x = 177,651,966,600.78/392,015.60
  6. Step 6: Final answer
    x = 453,175.76

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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.