Home / 1,400,639.44-2,101,615.26-690,279.97

Finding the Fourth Proportional to 1,400,639.44, 2,101,615.26 and 690,279.97

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Solution

The fourth proportional to 1,400,639.44, 2,101,615.26 and 690,279.97 is: 1,035,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,639.44 : 2,101,615.26 = 690,279.97 : x
  2. Step 2: Convert to fraction form
    1,400,639.44/2,101,615.26 = 690,279.97/x
  3. Step 3: Cross multiply
    1,400,639.44x = 2,101,615.26 × 690,279.97
  4. Step 4: Simplify right side
    1,400,639.44x = 1,450,702,918,624.34
  5. Step 5: Solve for x
    x = 1,450,702,918,624.34/1,400,639.44
  6. Step 6: Final answer
    x = 1,035,743.30

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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.