Home / 1,080,201.98-1,490,633.07-621,281.90

Finding the Fourth Proportional to 1,080,201.98, 1,490,633.07 and 621,281.90

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Solution

The fourth proportional to 1,080,201.98, 1,490,633.07 and 621,281.90 is: 857,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,201.98 : 1,490,633.07 = 621,281.90 : x
  2. Step 2: Convert to fraction form
    1,080,201.98/1,490,633.07 = 621,281.90/x
  3. Step 3: Cross multiply
    1,080,201.98x = 1,490,633.07 × 621,281.90
  4. Step 4: Simplify right side
    1,080,201.98x = 926,103,345,932.43
  5. Step 5: Solve for x
    x = 926,103,345,932.43/1,080,201.98
  6. Step 6: Final answer
    x = 857,342.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.