Home / 513,668.28-769,457.94-419,235

Finding the Fourth Proportional to 513,668.28, 769,457.94 and 419,235

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Solution

The fourth proportional to 513,668.28, 769,457.94 and 419,235 is: 628,000.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,668.28 : 769,457.94 = 419,235 : x
  2. Step 2: Convert to fraction form
    513,668.28/769,457.94 = 419,235/x
  3. Step 3: Cross multiply
    513,668.28x = 769,457.94 × 419,235
  4. Step 4: Simplify right side
    513,668.28x = 322,583,699,475.90
  5. Step 5: Solve for x
    x = 322,583,699,475.90/513,668.28
  6. Step 6: Final answer
    x = 628,000.04

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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.