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Finding the Fourth Proportional to 637,543.31, 879,815.52 and 351,064.53

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Solution

The fourth proportional to 637,543.31, 879,815.52 and 351,064.53 is: 484,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,543.31 : 879,815.52 = 351,064.53 : x
  2. Step 2: Convert to fraction form
    637,543.31/879,815.52 = 351,064.53/x
  3. Step 3: Cross multiply
    637,543.31x = 879,815.52 × 351,064.53
  4. Step 4: Simplify right side
    637,543.31x = 308,872,022,015.51
  5. Step 5: Solve for x
    x = 308,872,022,015.51/637,543.31
  6. Step 6: Final answer
    x = 484,472.22

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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.