Home / 856,521.56-1,283,380.68-518,537.81

Finding the Fourth Proportional to 856,521.56, 1,283,380.68 and 518,537.81

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Solution

The fourth proportional to 856,521.56, 1,283,380.68 and 518,537.81 is: 776,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,521.56 : 1,283,380.68 = 518,537.81 : x
  2. Step 2: Convert to fraction form
    856,521.56/1,283,380.68 = 518,537.81/x
  3. Step 3: Cross multiply
    856,521.56x = 1,283,380.68 × 518,537.81
  4. Step 4: Simplify right side
    856,521.56x = 665,481,407,203.51
  5. Step 5: Solve for x
    x = 665,481,407,203.51/856,521.56
  6. Step 6: Final answer
    x = 776,958.15

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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.