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Finding the Fourth Proportional to 554,053.88, 830,785.44 and 287,546.06

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Solution

The fourth proportional to 554,053.88, 830,785.44 and 287,546.06 is: 431,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,053.88 : 830,785.44 = 287,546.06 : x
  2. Step 2: Convert to fraction form
    554,053.88/830,785.44 = 287,546.06/x
  3. Step 3: Cross multiply
    554,053.88x = 830,785.44 × 287,546.06
  4. Step 4: Simplify right side
    554,053.88x = 238,889,079,977.37
  5. Step 5: Solve for x
    x = 238,889,079,977.37/554,053.88
  6. Step 6: Final answer
    x = 431,165.79

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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.