Home / 447,021.40-669,657.30-268,999.60

Finding the Fourth Proportional to 447,021.40, 669,657.30 and 268,999.60

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Solution

The fourth proportional to 447,021.40, 669,657.30 and 268,999.60 is: 402,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,021.40 : 669,657.30 = 268,999.60 : x
  2. Step 2: Convert to fraction form
    447,021.40/669,657.30 = 268,999.60/x
  3. Step 3: Cross multiply
    447,021.40x = 669,657.30 × 268,999.60
  4. Step 4: Simplify right side
    447,021.40x = 180,137,545,837.08
  5. Step 5: Solve for x
    x = 180,137,545,837.08/447,021.40
  6. Step 6: Final answer
    x = 402,972.98

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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.