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Finding the Fourth Proportional to 586,479.80, 879,544.20 and 305,843.96

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Solution

The fourth proportional to 586,479.80, 879,544.20 and 305,843.96 is: 458,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,479.80 : 879,544.20 = 305,843.96 : x
  2. Step 2: Convert to fraction form
    586,479.80/879,544.20 = 305,843.96/x
  3. Step 3: Cross multiply
    586,479.80x = 879,544.20 × 305,843.96
  4. Step 4: Simplify right side
    586,479.80x = 269,003,281,123.03
  5. Step 5: Solve for x
    x = 269,003,281,123.03/586,479.80
  6. Step 6: Final answer
    x = 458,674.42

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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.