Home / 856,087.36-1,284,215.98-316,484.98

Finding the Fourth Proportional to 856,087.36, 1,284,215.98 and 316,484.98

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Solution

The fourth proportional to 856,087.36, 1,284,215.98 and 316,484.98 is: 474,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,087.36 : 1,284,215.98 = 316,484.98 : x
  2. Step 2: Convert to fraction form
    856,087.36/1,284,215.98 = 316,484.98/x
  3. Step 3: Cross multiply
    856,087.36x = 1,284,215.98 × 316,484.98
  4. Step 4: Simplify right side
    856,087.36x = 406,435,068,745.98
  5. Step 5: Solve for x
    x = 406,435,068,745.98/856,087.36
  6. Step 6: Final answer
    x = 474,758.87

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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.