Home / 481,214.72-664,050.35-287,626.95

Finding the Fourth Proportional to 481,214.72, 664,050.35 and 287,626.95

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Solution

The fourth proportional to 481,214.72, 664,050.35 and 287,626.95 is: 396,909.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,214.72 : 664,050.35 = 287,626.95 : x
  2. Step 2: Convert to fraction form
    481,214.72/664,050.35 = 287,626.95/x
  3. Step 3: Cross multiply
    481,214.72x = 664,050.35 × 287,626.95
  4. Step 4: Simplify right side
    481,214.72x = 190,998,777,536.00
  5. Step 5: Solve for x
    x = 190,998,777,536.00/481,214.72
  6. Step 6: Final answer
    x = 396,909.67

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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.