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Finding the Fourth Proportional to 559,183.30, 771,694.80 and 317,488.36

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Solution

The fourth proportional to 559,183.30, 771,694.80 and 317,488.36 is: 438,146.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,183.30 : 771,694.80 = 317,488.36 : x
  2. Step 2: Convert to fraction form
    559,183.30/771,694.80 = 317,488.36/x
  3. Step 3: Cross multiply
    559,183.30x = 771,694.80 × 317,488.36
  4. Step 4: Simplify right side
    559,183.30x = 245,004,114,799.64
  5. Step 5: Solve for x
    x = 245,004,114,799.64/559,183.30
  6. Step 6: Final answer
    x = 438,146.34

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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.