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Finding the Fourth Proportional to 493,665.60, 740,522.70 and 257,469.60

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Solution

The fourth proportional to 493,665.60, 740,522.70 and 257,469.60 is: 386,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,665.60 : 740,522.70 = 257,469.60 : x
  2. Step 2: Convert to fraction form
    493,665.60/740,522.70 = 257,469.60/x
  3. Step 3: Cross multiply
    493,665.60x = 740,522.70 × 257,469.60
  4. Step 4: Simplify right side
    493,665.60x = 190,662,083,359.92
  5. Step 5: Solve for x
    x = 190,662,083,359.92/493,665.60
  6. Step 6: Final answer
    x = 386,217.07

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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.