Home / 643,579.62-965,375.22-163,807.93

Finding the Fourth Proportional to 643,579.62, 965,375.22 and 163,807.93

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Solution

The fourth proportional to 643,579.62, 965,375.22 and 163,807.93 is: 245,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,579.62 : 965,375.22 = 163,807.93 : x
  2. Step 2: Convert to fraction form
    643,579.62/965,375.22 = 163,807.93/x
  3. Step 3: Cross multiply
    643,579.62x = 965,375.22 × 163,807.93
  4. Step 4: Simplify right side
    643,579.62x = 158,136,116,461.50
  5. Step 5: Solve for x
    x = 158,136,116,461.50/643,579.62
  6. Step 6: Final answer
    x = 245,713.37

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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.