Home / 916,980.85-1,375,028.87-384,358.87

Finding the Fourth Proportional to 916,980.85, 1,375,028.87 and 384,358.87

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Solution

The fourth proportional to 916,980.85, 1,375,028.87 and 384,358.87 is: 576,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,980.85 : 1,375,028.87 = 384,358.87 : x
  2. Step 2: Convert to fraction form
    916,980.85/1,375,028.87 = 384,358.87/x
  3. Step 3: Cross multiply
    916,980.85x = 1,375,028.87 × 384,358.87
  4. Step 4: Simplify right side
    916,980.85x = 528,504,542,487.57
  5. Step 5: Solve for x
    x = 528,504,542,487.57/916,980.85
  6. Step 6: Final answer
    x = 576,352.87

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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.