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Finding the Fourth Proportional to 447,002.40, 669,628.80 and 268,980.60

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Solution

The fourth proportional to 447,002.40, 669,628.80 and 268,980.60 is: 402,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,002.40 : 669,628.80 = 268,980.60 : x
  2. Step 2: Convert to fraction form
    447,002.40/669,628.80 = 268,980.60/x
  3. Step 3: Cross multiply
    447,002.40x = 669,628.80 × 268,980.60
  4. Step 4: Simplify right side
    447,002.40x = 180,117,156,401.28
  5. Step 5: Solve for x
    x = 180,117,156,401.28/447,002.40
  6. Step 6: Final answer
    x = 402,944.50

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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.