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Finding the Fourth Proportional to 483,565.84, 667,405.94 and 279,584.36

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Solution

The fourth proportional to 483,565.84, 667,405.94 and 279,584.36 is: 385,875.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,565.84 : 667,405.94 = 279,584.36 : x
  2. Step 2: Convert to fraction form
    483,565.84/667,405.94 = 279,584.36/x
  3. Step 3: Cross multiply
    483,565.84x = 667,405.94 × 279,584.36
  4. Step 4: Simplify right side
    483,565.84x = 186,596,262,595.10
  5. Step 5: Solve for x
    x = 186,596,262,595.10/483,565.84
  6. Step 6: Final answer
    x = 385,875.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.