Home / 419,631.75-628,999.46-239,329.01

Finding the Fourth Proportional to 419,631.75, 628,999.46 and 239,329.01

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Solution

The fourth proportional to 419,631.75, 628,999.46 and 239,329.01 is: 358,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,631.75 : 628,999.46 = 239,329.01 : x
  2. Step 2: Convert to fraction form
    419,631.75/628,999.46 = 239,329.01/x
  3. Step 3: Cross multiply
    419,631.75x = 628,999.46 × 239,329.01
  4. Step 4: Simplify right side
    419,631.75x = 150,537,818,052.34
  5. Step 5: Solve for x
    x = 150,537,818,052.34/419,631.75
  6. Step 6: Final answer
    x = 358,737.91

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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.