Home / 419,039.40-628,559.10-152,808.60

Finding the Fourth Proportional to 419,039.40, 628,559.10 and 152,808.60

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Solution

The fourth proportional to 419,039.40, 628,559.10 and 152,808.60 is: 229,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,039.40 : 628,559.10 = 152,808.60 : x
  2. Step 2: Convert to fraction form
    419,039.40/628,559.10 = 152,808.60/x
  3. Step 3: Cross multiply
    419,039.40x = 628,559.10 × 152,808.60
  4. Step 4: Simplify right side
    419,039.40x = 96,049,236,088.26
  5. Step 5: Solve for x
    x = 96,049,236,088.26/419,039.40
  6. Step 6: Final answer
    x = 229,212.90

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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.