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Finding the Fourth Proportional to 637,655.02, 879,958.10 and 351,168.96

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Solution

The fourth proportional to 637,655.02, 879,958.10 and 351,168.96 is: 484,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,655.02 : 879,958.10 = 351,168.96 : x
  2. Step 2: Convert to fraction form
    637,655.02/879,958.10 = 351,168.96/x
  3. Step 3: Cross multiply
    637,655.02x = 879,958.10 × 351,168.96
  4. Step 4: Simplify right side
    637,655.02x = 309,013,970,820.58
  5. Step 5: Solve for x
    x = 309,013,970,820.58/637,655.02
  6. Step 6: Final answer
    x = 484,609.96

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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.