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Finding the Fourth Proportional to 524,889.72, 787,140.99 and 187,839

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Solution

The fourth proportional to 524,889.72, 787,140.99 and 187,839 is: 281,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,889.72 : 787,140.99 = 187,839 : x
  2. Step 2: Convert to fraction form
    524,889.72/787,140.99 = 187,839/x
  3. Step 3: Cross multiply
    524,889.72x = 787,140.99 × 187,839
  4. Step 4: Simplify right side
    524,889.72x = 147,855,776,420.61
  5. Step 5: Solve for x
    x = 147,855,776,420.61/524,889.72
  6. Step 6: Final answer
    x = 281,689.22

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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.