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Finding the Fourth Proportional to 493,287.09, 740,159.01 and 268,379.61

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Solution

The fourth proportional to 493,287.09, 740,159.01 and 268,379.61 is: 402,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,287.09 : 740,159.01 = 268,379.61 : x
  2. Step 2: Convert to fraction form
    493,287.09/740,159.01 = 268,379.61/x
  3. Step 3: Cross multiply
    493,287.09x = 740,159.01 × 268,379.61
  4. Step 4: Simplify right side
    493,287.09x = 198,643,586,441.79
  5. Step 5: Solve for x
    x = 198,643,586,441.79/493,287.09
  6. Step 6: Final answer
    x = 402,693.67

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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.