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Finding the Fourth Proportional to 447,030.40, 669,670.80 and 269,008.60

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Solution

The fourth proportional to 447,030.40, 669,670.80 and 269,008.60 is: 402,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,030.40 : 669,670.80 = 269,008.60 : x
  2. Step 2: Convert to fraction form
    447,030.40/669,670.80 = 269,008.60/x
  3. Step 3: Cross multiply
    447,030.40x = 669,670.80 × 269,008.60
  4. Step 4: Simplify right side
    447,030.40x = 180,147,204,368.88
  5. Step 5: Solve for x
    x = 180,147,204,368.88/447,030.40
  6. Step 6: Final answer
    x = 402,986.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.