Home / 744,899.63-1,027,890.41-418,137.83

Finding the Fourth Proportional to 744,899.63, 1,027,890.41 and 418,137.83

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Solution

The fourth proportional to 744,899.63, 1,027,890.41 and 418,137.83 is: 576,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,899.63 : 1,027,890.41 = 418,137.83 : x
  2. Step 2: Convert to fraction form
    744,899.63/1,027,890.41 = 418,137.83/x
  3. Step 3: Cross multiply
    744,899.63x = 1,027,890.41 × 418,137.83
  4. Step 4: Simplify right side
    744,899.63x = 429,799,862,139.66
  5. Step 5: Solve for x
    x = 429,799,862,139.66/744,899.63
  6. Step 6: Final answer
    x = 576,990.31

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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.