Home / 856,064.40-1,284,621.48-383,149.68

Finding the Fourth Proportional to 856,064.40, 1,284,621.48 and 383,149.68

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Solution

The fourth proportional to 856,064.40, 1,284,621.48 and 383,149.68 is: 574,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,064.40 : 1,284,621.48 = 383,149.68 : x
  2. Step 2: Convert to fraction form
    856,064.40/1,284,621.48 = 383,149.68/x
  3. Step 3: Cross multiply
    856,064.40x = 1,284,621.48 × 383,149.68
  4. Step 4: Simplify right side
    856,064.40x = 492,202,308,983.13
  5. Step 5: Solve for x
    x = 492,202,308,983.13/856,064.40
  6. Step 6: Final answer
    x = 574,959.44

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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.