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Finding the Fourth Proportional to 524,709.65, 787,212.11 and 187,798.21

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Solution

The fourth proportional to 524,709.65, 787,212.11 and 187,798.21 is: 281,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,709.65 : 787,212.11 = 187,798.21 : x
  2. Step 2: Convert to fraction form
    524,709.65/787,212.11 = 187,798.21/x
  3. Step 3: Cross multiply
    524,709.65x = 787,212.11 × 187,798.21
  4. Step 4: Simplify right side
    524,709.65x = 147,837,022,241.30
  5. Step 5: Solve for x
    x = 147,837,022,241.30/524,709.65
  6. Step 6: Final answer
    x = 281,750.15

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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.