Home / 389,816.64-584,746.83-109,355.76

Finding the Fourth Proportional to 389,816.64, 584,746.83 and 109,355.76

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Solution

The fourth proportional to 389,816.64, 584,746.83 and 109,355.76 is: 164,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,816.64 : 584,746.83 = 109,355.76 : x
  2. Step 2: Convert to fraction form
    389,816.64/584,746.83 = 109,355.76/x
  3. Step 3: Cross multiply
    389,816.64x = 584,746.83 × 109,355.76
  4. Step 4: Simplify right side
    389,816.64x = 63,945,434,002.24
  5. Step 5: Solve for x
    x = 63,945,434,002.24/389,816.64
  6. Step 6: Final answer
    x = 164,039.78

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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.