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Finding the Fourth Proportional to 392,055.60, 587,208.60 and 302,607.30

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Solution

The fourth proportional to 392,055.60, 587,208.60 and 302,607.30 is: 453,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,055.60 : 587,208.60 = 302,607.30 : x
  2. Step 2: Convert to fraction form
    392,055.60/587,208.60 = 302,607.30/x
  3. Step 3: Cross multiply
    392,055.60x = 587,208.60 × 302,607.30
  4. Step 4: Simplify right side
    392,055.60x = 177,693,608,982.78
  5. Step 5: Solve for x
    x = 177,693,608,982.78/392,055.60
  6. Step 6: Final answer
    x = 453,235.74

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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.