Home / 1,286,132.72-1,774,735.27-742,443.67

Finding the Fourth Proportional to 1,286,132.72, 1,774,735.27 and 742,443.67

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Solution

The fourth proportional to 1,286,132.72, 1,774,735.27 and 742,443.67 is: 1,024,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,132.72 : 1,774,735.27 = 742,443.67 : x
  2. Step 2: Convert to fraction form
    1,286,132.72/1,774,735.27 = 742,443.67/x
  3. Step 3: Cross multiply
    1,286,132.72x = 1,774,735.27 × 742,443.67
  4. Step 4: Simplify right side
    1,286,132.72x = 1,317,640,967,137.24
  5. Step 5: Solve for x
    x = 1,317,640,967,137.24/1,286,132.72
  6. Step 6: Final answer
    x = 1,024,498.44

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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.