Home / 856,515.63-1,285,354.83-457,442.82

Finding the Fourth Proportional to 856,515.63, 1,285,354.83 and 457,442.82

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Solution

The fourth proportional to 856,515.63, 1,285,354.83 and 457,442.82 is: 686,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,515.63 : 1,285,354.83 = 457,442.82 : x
  2. Step 2: Convert to fraction form
    856,515.63/1,285,354.83 = 457,442.82/x
  3. Step 3: Cross multiply
    856,515.63x = 1,285,354.83 × 457,442.82
  4. Step 4: Simplify right side
    856,515.63x = 587,976,338,135.82
  5. Step 5: Solve for x
    x = 587,976,338,135.82/856,515.63
  6. Step 6: Final answer
    x = 686,474.73

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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.