Home / 868,389.57-1,301,722.31-412,181.37

Finding the Fourth Proportional to 868,389.57, 1,301,722.31 and 412,181.37

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Solution

The fourth proportional to 868,389.57, 1,301,722.31 and 412,181.37 is: 617,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,389.57 : 1,301,722.31 = 412,181.37 : x
  2. Step 2: Convert to fraction form
    868,389.57/1,301,722.31 = 412,181.37/x
  3. Step 3: Cross multiply
    868,389.57x = 1,301,722.31 × 412,181.37
  4. Step 4: Simplify right side
    868,389.57x = 536,545,686,125.82
  5. Step 5: Solve for x
    x = 536,545,686,125.82/868,389.57
  6. Step 6: Final answer
    x = 617,862.89

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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.