Home / 1,263,074.72-1,742,991.90-690,134.72

Finding the Fourth Proportional to 1,263,074.72, 1,742,991.90 and 690,134.72

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Solution

The fourth proportional to 1,263,074.72, 1,742,991.90 and 690,134.72 is: 952,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,074.72 : 1,742,991.90 = 690,134.72 : x
  2. Step 2: Convert to fraction form
    1,263,074.72/1,742,991.90 = 690,134.72/x
  3. Step 3: Cross multiply
    1,263,074.72x = 1,742,991.90 × 690,134.72
  4. Step 4: Simplify right side
    1,263,074.72x = 1,202,899,226,868.77
  5. Step 5: Solve for x
    x = 1,202,899,226,868.77/1,263,074.72
  6. Step 6: Final answer
    x = 952,357.93

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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.