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Finding the Fourth Proportional to 637,505.29, 879,776.66 and 351,035.63

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Solution

The fourth proportional to 637,505.29, 879,776.66 and 351,035.63 is: 484,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,505.29 : 879,776.66 = 351,035.63 : x
  2. Step 2: Convert to fraction form
    637,505.29/879,776.66 = 351,035.63/x
  3. Step 3: Cross multiply
    637,505.29x = 879,776.66 × 351,035.63
  4. Step 4: Simplify right side
    637,505.29x = 308,832,952,563.88
  5. Step 5: Solve for x
    x = 308,832,952,563.88/637,505.29
  6. Step 6: Final answer
    x = 484,439.83

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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.