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Finding the Fourth Proportional to 492,819.60, 738,192.60 and 409,875.60

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Solution

The fourth proportional to 492,819.60, 738,192.60 and 409,875.60 is: 613,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,819.60 : 738,192.60 = 409,875.60 : x
  2. Step 2: Convert to fraction form
    492,819.60/738,192.60 = 409,875.60/x
  3. Step 3: Cross multiply
    492,819.60x = 738,192.60 × 409,875.60
  4. Step 4: Simplify right side
    492,819.60x = 302,567,134,840.56
  5. Step 5: Solve for x
    x = 302,567,134,840.56/492,819.60
  6. Step 6: Final answer
    x = 613,951.10

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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.