Home / 856,519.56-1,283,377.68-518,535.81

Finding the Fourth Proportional to 856,519.56, 1,283,377.68 and 518,535.81

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Solution

The fourth proportional to 856,519.56, 1,283,377.68 and 518,535.81 is: 776,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,519.56 : 1,283,377.68 = 518,535.81 : x
  2. Step 2: Convert to fraction form
    856,519.56/1,283,377.68 = 518,535.81/x
  3. Step 3: Cross multiply
    856,519.56x = 1,283,377.68 × 518,535.81
  4. Step 4: Simplify right side
    856,519.56x = 665,477,284,834.72
  5. Step 5: Solve for x
    x = 665,477,284,834.72/856,519.56
  6. Step 6: Final answer
    x = 776,955.15

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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.