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Finding the Fourth Proportional to 629,599.55, 868,822.02 and 343,113.48

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Solution

The fourth proportional to 629,599.55, 868,822.02 and 343,113.48 is: 473,482.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,599.55 : 868,822.02 = 343,113.48 : x
  2. Step 2: Convert to fraction form
    629,599.55/868,822.02 = 343,113.48/x
  3. Step 3: Cross multiply
    629,599.55x = 868,822.02 × 343,113.48
  4. Step 4: Simplify right side
    629,599.55x = 298,104,546,782.83
  5. Step 5: Solve for x
    x = 298,104,546,782.83/629,599.55
  6. Step 6: Final answer
    x = 473,482.79

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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.