Home / 714,272.21-1,071,396.49-287,797.62

Finding the Fourth Proportional to 714,272.21, 1,071,396.49 and 287,797.62

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Solution

The fourth proportional to 714,272.21, 1,071,396.49 and 287,797.62 is: 431,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,272.21 : 1,071,396.49 = 287,797.62 : x
  2. Step 2: Convert to fraction form
    714,272.21/1,071,396.49 = 287,797.62/x
  3. Step 3: Cross multiply
    714,272.21x = 1,071,396.49 × 287,797.62
  4. Step 4: Simplify right side
    714,272.21x = 308,345,359,898.35
  5. Step 5: Solve for x
    x = 308,345,359,898.35/714,272.21
  6. Step 6: Final answer
    x = 431,691.67

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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.