Home / 856,789.56-1,285,425.14-317,037.88

Finding the Fourth Proportional to 856,789.56, 1,285,425.14 and 317,037.88

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Solution

The fourth proportional to 856,789.56, 1,285,425.14 and 317,037.88 is: 475,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,789.56 : 1,285,425.14 = 317,037.88 : x
  2. Step 2: Convert to fraction form
    856,789.56/1,285,425.14 = 317,037.88/x
  3. Step 3: Cross multiply
    856,789.56x = 1,285,425.14 × 317,037.88
  4. Step 4: Simplify right side
    856,789.56x = 407,528,461,284.30
  5. Step 5: Solve for x
    x = 407,528,461,284.30/856,789.56
  6. Step 6: Final answer
    x = 475,645.92

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1.5x scale

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.