Home / 856,078.46-1,284,202.64-316,476.10

Finding the Fourth Proportional to 856,078.46, 1,284,202.64 and 316,476.10

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Solution

The fourth proportional to 856,078.46, 1,284,202.64 and 316,476.10 is: 474,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,078.46 : 1,284,202.64 = 316,476.10 : x
  2. Step 2: Convert to fraction form
    856,078.46/1,284,202.64 = 316,476.10/x
  3. Step 3: Cross multiply
    856,078.46x = 1,284,202.64 × 316,476.10
  4. Step 4: Simplify right side
    856,078.46x = 406,419,443,116.90
  5. Step 5: Solve for x
    x = 406,419,443,116.90/856,078.46
  6. Step 6: Final answer
    x = 474,745.55

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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.