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Finding the Fourth Proportional to 493,489.56, 740,459.70 and 268,512.60

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Solution

The fourth proportional to 493,489.56, 740,459.70 and 268,512.60 is: 402,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,489.56 : 740,459.70 = 268,512.60 : x
  2. Step 2: Convert to fraction form
    493,489.56/740,459.70 = 268,512.60/x
  3. Step 3: Cross multiply
    493,489.56x = 740,459.70 × 268,512.60
  4. Step 4: Simplify right side
    493,489.56x = 198,822,759,242.22
  5. Step 5: Solve for x
    x = 198,822,759,242.22/493,489.56
  6. Step 6: Final answer
    x = 402,891.52

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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.