Home / 447,247.80-669,705.30-426,252.60

Finding the Fourth Proportional to 447,247.80, 669,705.30 and 426,252.60

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Solution

The fourth proportional to 447,247.80, 669,705.30 and 426,252.60 is: 638,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,247.80 : 669,705.30 = 426,252.60 : x
  2. Step 2: Convert to fraction form
    447,247.80/669,705.30 = 426,252.60/x
  3. Step 3: Cross multiply
    447,247.80x = 669,705.30 × 426,252.60
  4. Step 4: Simplify right side
    447,247.80x = 285,463,625,358.78
  5. Step 5: Solve for x
    x = 285,463,625,358.78/447,247.80
  6. Step 6: Final answer
    x = 638,267.25

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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.