Home / 1,394,459.60-2,093,071.80-685,288.40

Finding the Fourth Proportional to 1,394,459.60, 2,093,071.80 and 685,288.40

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Solution

The fourth proportional to 1,394,459.60, 2,093,071.80 and 685,288.40 is: 1,028,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,459.60 : 2,093,071.80 = 685,288.40 : x
  2. Step 2: Convert to fraction form
    1,394,459.60/2,093,071.80 = 685,288.40/x
  3. Step 3: Cross multiply
    1,394,459.60x = 2,093,071.80 × 685,288.40
  4. Step 4: Simplify right side
    1,394,459.60x = 1,434,357,824,907.12
  5. Step 5: Solve for x
    x = 1,434,357,824,907.12/1,394,459.60
  6. Step 6: Final answer
    x = 1,028,611.96

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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.