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Finding the Fourth Proportional to 637,647.50, 879,953.64 and 351,167.06

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Solution

The fourth proportional to 637,647.50, 879,953.64 and 351,167.06 is: 484,610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,647.50 : 879,953.64 = 351,167.06 : x
  2. Step 2: Convert to fraction form
    637,647.50/879,953.64 = 351,167.06/x
  3. Step 3: Cross multiply
    637,647.50x = 879,953.64 × 351,167.06
  4. Step 4: Simplify right side
    637,647.50x = 309,010,732,695.10
  5. Step 5: Solve for x
    x = 309,010,732,695.10/637,647.50
  6. Step 6: Final answer
    x = 484,610.59

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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.