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Finding the Fourth Proportional to 395,279.73, 593,510.04 and 389,374.83

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Solution

The fourth proportional to 395,279.73, 593,510.04 and 389,374.83 is: 584,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,279.73 : 593,510.04 = 389,374.83 : x
  2. Step 2: Convert to fraction form
    395,279.73/593,510.04 = 389,374.83/x
  3. Step 3: Cross multiply
    395,279.73x = 593,510.04 × 389,374.83
  4. Step 4: Simplify right side
    395,279.73x = 231,097,870,928.29
  5. Step 5: Solve for x
    x = 231,097,870,928.29/395,279.73
  6. Step 6: Final answer
    x = 584,643.87

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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.