Home / 643,015.64-964,326.47-444,611.00

Finding the Fourth Proportional to 643,015.64, 964,326.47 and 444,611.00

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Solution

The fourth proportional to 643,015.64, 964,326.47 and 444,611.00 is: 666,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,015.64 : 964,326.47 = 444,611.00 : x
  2. Step 2: Convert to fraction form
    643,015.64/964,326.47 = 444,611.00/x
  3. Step 3: Cross multiply
    643,015.64x = 964,326.47 × 444,611.00
  4. Step 4: Simplify right side
    643,015.64x = 428,750,159,675.51
  5. Step 5: Solve for x
    x = 428,750,159,675.51/643,015.64
  6. Step 6: Final answer
    x = 666,780.29

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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.