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Finding the Fourth Proportional to 1,563.65, 2,345.13 and 467.87

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Solution

The fourth proportional to 1,563.65, 2,345.13 and 467.87 is: 701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.65 : 2,345.13 = 467.87 : x
  2. Step 2: Convert to fraction form
    1,563.65/2,345.13 = 467.87/x
  3. Step 3: Cross multiply
    1,563.65x = 2,345.13 × 467.87
  4. Step 4: Simplify right side
    1,563.65x = 1,097,213.63
  5. Step 5: Solve for x
    x = 1,097,213.63/1,563.65
  6. Step 6: Final answer
    x = 701.70

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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.