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Finding the Fourth Proportional to 887,706.72, 1,331,569.80 and 256,626

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Solution

The fourth proportional to 887,706.72, 1,331,569.80 and 256,626 is: 384,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,706.72 : 1,331,569.80 = 256,626 : x
  2. Step 2: Convert to fraction form
    887,706.72/1,331,569.80 = 256,626/x
  3. Step 3: Cross multiply
    887,706.72x = 1,331,569.80 × 256,626
  4. Step 4: Simplify right side
    887,706.72x = 341,715,431,494.80
  5. Step 5: Solve for x
    x = 341,715,431,494.80/887,706.72
  6. Step 6: Final answer
    x = 384,941.81

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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.