Home / 856,099.28-1,284,233.88-316,496.96

Finding the Fourth Proportional to 856,099.28, 1,284,233.88 and 316,496.96

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Solution

The fourth proportional to 856,099.28, 1,284,233.88 and 316,496.96 is: 474,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,099.28 : 1,284,233.88 = 316,496.96 : x
  2. Step 2: Convert to fraction form
    856,099.28/1,284,233.88 = 316,496.96/x
  3. Step 3: Cross multiply
    856,099.28x = 1,284,233.88 × 316,496.96
  4. Step 4: Simplify right side
    856,099.28x = 406,456,118,949.01
  5. Step 5: Solve for x
    x = 406,456,118,949.01/856,099.28
  6. Step 6: Final answer
    x = 474,776.85

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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.