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Finding the Fourth Proportional to 637,525.69, 879,764.79 and 351,038.41

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Solution

The fourth proportional to 637,525.69, 879,764.79 and 351,038.41 is: 484,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,525.69 : 879,764.79 = 351,038.41 : x
  2. Step 2: Convert to fraction form
    637,525.69/879,764.79 = 351,038.41/x
  3. Step 3: Cross multiply
    637,525.69x = 879,764.79 × 351,038.41
  4. Step 4: Simplify right side
    637,525.69x = 308,831,232,172.57
  5. Step 5: Solve for x
    x = 308,831,232,172.57/637,525.69
  6. Step 6: Final answer
    x = 484,421.63

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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.