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Finding the Fourth Proportional to 5,317,682.76, 7,974,851.08 and 1,722,615.62

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Solution

The fourth proportional to 5,317,682.76, 7,974,851.08 and 1,722,615.62 is: 2,583,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317,682.76 : 7,974,851.08 = 1,722,615.62 : x
  2. Step 2: Convert to fraction form
    5,317,682.76/7,974,851.08 = 1,722,615.62/x
  3. Step 3: Cross multiply
    5,317,682.76x = 7,974,851.08 × 1,722,615.62
  4. Step 4: Simplify right side
    5,317,682.76x = 13,737,603,037,581.87
  5. Step 5: Solve for x
    x = 13,737,603,037,581.87/5,317,682.76
  6. Step 6: Final answer
    x = 2,583,381.46

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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.