Home / 643,563.40-964,062.06-502,662.28

Finding the Fourth Proportional to 643,563.40, 964,062.06 and 502,662.28

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Solution

The fourth proportional to 643,563.40, 964,062.06 and 502,662.28 is: 752,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,563.40 : 964,062.06 = 502,662.28 : x
  2. Step 2: Convert to fraction form
    643,563.40/964,062.06 = 502,662.28/x
  3. Step 3: Cross multiply
    643,563.40x = 964,062.06 × 502,662.28
  4. Step 4: Simplify right side
    643,563.40x = 484,597,633,141.10
  5. Step 5: Solve for x
    x = 484,597,633,141.10/643,563.40
  6. Step 6: Final answer
    x = 752,991.29

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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.