Home / 1,086,518.75-1,629,808.94-287,800.36

Finding the Fourth Proportional to 1,086,518.75, 1,629,808.94 and 287,800.36

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Solution

The fourth proportional to 1,086,518.75, 1,629,808.94 and 287,800.36 is: 431,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,518.75 : 1,629,808.94 = 287,800.36 : x
  2. Step 2: Convert to fraction form
    1,086,518.75/1,629,808.94 = 287,800.36/x
  3. Step 3: Cross multiply
    1,086,518.75x = 1,629,808.94 × 287,800.36
  4. Step 4: Simplify right side
    1,086,518.75x = 469,059,596,308.20
  5. Step 5: Solve for x
    x = 469,059,596,308.20/1,086,518.75
  6. Step 6: Final answer
    x = 431,708.70

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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.