Home / 437,864.20-655,338.30-317,579.20

Finding the Fourth Proportional to 437,864.20, 655,338.30 and 317,579.20

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Solution

The fourth proportional to 437,864.20, 655,338.30 and 317,579.20 is: 475,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,864.20 : 655,338.30 = 317,579.20 : x
  2. Step 2: Convert to fraction form
    437,864.20/655,338.30 = 317,579.20/x
  3. Step 3: Cross multiply
    437,864.20x = 655,338.30 × 317,579.20
  4. Step 4: Simplify right side
    437,864.20x = 208,121,813,043.36
  5. Step 5: Solve for x
    x = 208,121,813,043.36/437,864.20
  6. Step 6: Final answer
    x = 475,311.32

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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.