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Finding the Fourth Proportional to 629,556.96, 868,763.16 and 343,070.88

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Solution

The fourth proportional to 629,556.96, 868,763.16 and 343,070.88 is: 473,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,556.96 : 868,763.16 = 343,070.88 : x
  2. Step 2: Convert to fraction form
    629,556.96/868,763.16 = 343,070.88/x
  3. Step 3: Cross multiply
    629,556.96x = 868,763.16 × 343,070.88
  4. Step 4: Simplify right side
    629,556.96x = 298,047,341,812.78
  5. Step 5: Solve for x
    x = 298,047,341,812.78/629,556.96
  6. Step 6: Final answer
    x = 473,423.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.