Home / 447,001.20-670,522.80-147,507.96

Finding the Fourth Proportional to 447,001.20, 670,522.80 and 147,507.96

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Solution

The fourth proportional to 447,001.20, 670,522.80 and 147,507.96 is: 221,268.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,001.20 : 670,522.80 = 147,507.96 : x
  2. Step 2: Convert to fraction form
    447,001.20/670,522.80 = 147,507.96/x
  3. Step 3: Cross multiply
    447,001.20x = 670,522.80 × 147,507.96
  4. Step 4: Simplify right side
    447,001.20x = 98,907,450,361.49
  5. Step 5: Solve for x
    x = 98,907,450,361.49/447,001.20
  6. Step 6: Final answer
    x = 221,268.87

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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.