Home / 389,660.10-584,490.15-332,579.40

Finding the Fourth Proportional to 389,660.10, 584,490.15 and 332,579.40

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Solution

The fourth proportional to 389,660.10, 584,490.15 and 332,579.40 is: 498,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,660.10 : 584,490.15 = 332,579.40 : x
  2. Step 2: Convert to fraction form
    389,660.10/584,490.15 = 332,579.40/x
  3. Step 3: Cross multiply
    389,660.10x = 584,490.15 × 332,579.40
  4. Step 4: Simplify right side
    389,660.10x = 194,389,383,392.91
  5. Step 5: Solve for x
    x = 194,389,383,392.91/389,660.10
  6. Step 6: Final answer
    x = 498,869.10

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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.