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Finding the Fourth Proportional to 648,360.05, 971,865.74 and 269,487

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Solution

The fourth proportional to 648,360.05, 971,865.74 and 269,487 is: 403,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,360.05 : 971,865.74 = 269,487 : x
  2. Step 2: Convert to fraction form
    648,360.05/971,865.74 = 269,487/x
  3. Step 3: Cross multiply
    648,360.05x = 971,865.74 × 269,487
  4. Step 4: Simplify right side
    648,360.05x = 261,905,183,349.10
  5. Step 5: Solve for x
    x = 261,905,183,349.10/648,360.05
  6. Step 6: Final answer
    x = 403,950.22

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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.