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Finding the Fourth Proportional to 392,014.60, 587,147.10 and 302,566.30

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Solution

The fourth proportional to 392,014.60, 587,147.10 and 302,566.30 is: 453,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,014.60 : 587,147.10 = 302,566.30 : x
  2. Step 2: Convert to fraction form
    392,014.60/587,147.10 = 302,566.30/x
  3. Step 3: Cross multiply
    392,014.60x = 587,147.10 × 302,566.30
  4. Step 4: Simplify right side
    392,014.60x = 177,650,925,602.73
  5. Step 5: Solve for x
    x = 177,650,925,602.73/392,014.60
  6. Step 6: Final answer
    x = 453,174.26

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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.