Home / 1,263,046.86-1,742,984.06-690,074.70

Finding the Fourth Proportional to 1,263,046.86, 1,742,984.06 and 690,074.70

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Solution

The fourth proportional to 1,263,046.86, 1,742,984.06 and 690,074.70 is: 952,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,046.86 : 1,742,984.06 = 690,074.70 : x
  2. Step 2: Convert to fraction form
    1,263,046.86/1,742,984.06 = 690,074.70/x
  3. Step 3: Cross multiply
    1,263,046.86x = 1,742,984.06 × 690,074.70
  4. Step 4: Simplify right side
    1,263,046.86x = 1,202,789,202,309.28
  5. Step 5: Solve for x
    x = 1,202,789,202,309.28/1,263,046.86
  6. Step 6: Final answer
    x = 952,291.83

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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.