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Finding the Fourth Proportional to 637,505.10, 879,776.40 and 351,035.44

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Solution

The fourth proportional to 637,505.10, 879,776.40 and 351,035.44 is: 484,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,505.10 : 879,776.40 = 351,035.44 : x
  2. Step 2: Convert to fraction form
    637,505.10/879,776.40 = 351,035.44/x
  3. Step 3: Cross multiply
    637,505.10x = 879,776.40 × 351,035.44
  4. Step 4: Simplify right side
    637,505.10x = 308,832,696,775.34
  5. Step 5: Solve for x
    x = 308,832,696,775.34/637,505.10
  6. Step 6: Final answer
    x = 484,439.57

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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.