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Finding the Fourth Proportional to 492,679.64, 679,898.34 and 266,325.12

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Solution

The fourth proportional to 492,679.64, 679,898.34 and 266,325.12 is: 367,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,679.64 : 679,898.34 = 266,325.12 : x
  2. Step 2: Convert to fraction form
    492,679.64/679,898.34 = 266,325.12/x
  3. Step 3: Cross multiply
    492,679.64x = 679,898.34 × 266,325.12
  4. Step 4: Simplify right side
    492,679.64x = 181,074,006,988.30
  5. Step 5: Solve for x
    x = 181,074,006,988.30/492,679.64
  6. Step 6: Final answer
    x = 367,528.90

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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.