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Finding the Fourth Proportional to 637,549.47, 879,786.69 and 351,016.02

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Solution

The fourth proportional to 637,549.47, 879,786.69 and 351,016.02 is: 484,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,549.47 : 879,786.69 = 351,016.02 : x
  2. Step 2: Convert to fraction form
    637,549.47/879,786.69 = 351,016.02/x
  3. Step 3: Cross multiply
    637,549.47x = 879,786.69 × 351,016.02
  4. Step 4: Simplify right side
    637,549.47x = 308,819,222,372.77
  5. Step 5: Solve for x
    x = 308,819,222,372.77/637,549.47
  6. Step 6: Final answer
    x = 484,384.72

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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.