Home / 1,086,246.40-1,629,369.60-684,713.20

Finding the Fourth Proportional to 1,086,246.40, 1,629,369.60 and 684,713.20

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Solution

The fourth proportional to 1,086,246.40, 1,629,369.60 and 684,713.20 is: 1,027,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,246.40 : 1,629,369.60 = 684,713.20 : x
  2. Step 2: Convert to fraction form
    1,086,246.40/1,629,369.60 = 684,713.20/x
  3. Step 3: Cross multiply
    1,086,246.40x = 1,629,369.60 × 684,713.20
  4. Step 4: Simplify right side
    1,086,246.40x = 1,115,650,872,798.72
  5. Step 5: Solve for x
    x = 1,115,650,872,798.72/1,086,246.40
  6. Step 6: Final answer
    x = 1,027,069.80

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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.