Home / 389,407.50-584,111.25-108,924.75

Finding the Fourth Proportional to 389,407.50, 584,111.25 and 108,924.75

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Solution

The fourth proportional to 389,407.50, 584,111.25 and 108,924.75 is: 163,387.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,407.50 : 584,111.25 = 108,924.75 : x
  2. Step 2: Convert to fraction form
    389,407.50/584,111.25 = 108,924.75/x
  3. Step 3: Cross multiply
    389,407.50x = 584,111.25 × 108,924.75
  4. Step 4: Simplify right side
    389,407.50x = 63,624,171,878.44
  5. Step 5: Solve for x
    x = 63,624,171,878.44/389,407.50
  6. Step 6: Final answer
    x = 163,387.13

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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.