Home / 856,868.76-1,285,622.99-457,287.46

Finding the Fourth Proportional to 856,868.76, 1,285,622.99 and 457,287.46

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Solution

The fourth proportional to 856,868.76, 1,285,622.99 and 457,287.46 is: 686,101.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,868.76 : 1,285,622.99 = 457,287.46 : x
  2. Step 2: Convert to fraction form
    856,868.76/1,285,622.99 = 457,287.46/x
  3. Step 3: Cross multiply
    856,868.76x = 1,285,622.99 × 457,287.46
  4. Step 4: Simplify right side
    856,868.76x = 587,899,267,829.04
  5. Step 5: Solve for x
    x = 587,899,267,829.04/856,868.76
  6. Step 6: Final answer
    x = 686,101.88

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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.