Home / 389,653.36-584,502.78-109,192.48

Finding the Fourth Proportional to 389,653.36, 584,502.78 and 109,192.48

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Solution

The fourth proportional to 389,653.36, 584,502.78 and 109,192.48 is: 163,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,653.36 : 584,502.78 = 109,192.48 : x
  2. Step 2: Convert to fraction form
    389,653.36/584,502.78 = 109,192.48/x
  3. Step 3: Cross multiply
    389,653.36x = 584,502.78 × 109,192.48
  4. Step 4: Simplify right side
    389,653.36x = 63,823,308,115.09
  5. Step 5: Solve for x
    x = 63,823,308,115.09/389,653.36
  6. Step 6: Final answer
    x = 163,795.09

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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.