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Finding the Fourth Proportional to 663,862.78, 995,792.65 and 284,537.55

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Solution

The fourth proportional to 663,862.78, 995,792.65 and 284,537.55 is: 426,805.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,862.78 : 995,792.65 = 284,537.55 : x
  2. Step 2: Convert to fraction form
    663,862.78/995,792.65 = 284,537.55/x
  3. Step 3: Cross multiply
    663,862.78x = 995,792.65 × 284,537.55
  4. Step 4: Simplify right side
    663,862.78x = 283,340,399,516.32
  5. Step 5: Solve for x
    x = 283,340,399,516.32/663,862.78
  6. Step 6: Final answer
    x = 426,805.67

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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.