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Finding the Fourth Proportional to 379,538, 523,623.96 and 292,349.52

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Solution

The fourth proportional to 379,538, 523,623.96 and 292,349.52 is: 403,335.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,538 : 523,623.96 = 292,349.52 : x
  2. Step 2: Convert to fraction form
    379,538/523,623.96 = 292,349.52/x
  3. Step 3: Cross multiply
    379,538x = 523,623.96 × 292,349.52
  4. Step 4: Simplify right side
    379,538x = 153,081,213,366.50
  5. Step 5: Solve for x
    x = 153,081,213,366.50/379,538
  6. Step 6: Final answer
    x = 403,335.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.