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Finding the Fourth Proportional to 625,529.69, 937,568.72 and 287,861.45

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Solution

The fourth proportional to 625,529.69, 937,568.72 and 287,861.45 is: 431,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,529.69 : 937,568.72 = 287,861.45 : x
  2. Step 2: Convert to fraction form
    625,529.69/937,568.72 = 287,861.45/x
  3. Step 3: Cross multiply
    625,529.69x = 937,568.72 × 287,861.45
  4. Step 4: Simplify right side
    625,529.69x = 269,889,887,245.65
  5. Step 5: Solve for x
    x = 269,889,887,245.65/625,529.69
  6. Step 6: Final answer
    x = 431,458.16

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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.