Home / 5,309,961.21-7,964,987.85-1,715,728.50

Finding the Fourth Proportional to 5,309,961.21, 7,964,987.85 and 1,715,728.50

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Solution

The fourth proportional to 5,309,961.21, 7,964,987.85 and 1,715,728.50 is: 2,573,607.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309,961.21 : 7,964,987.85 = 1,715,728.50 : x
  2. Step 2: Convert to fraction form
    5,309,961.21/7,964,987.85 = 1,715,728.50/x
  3. Step 3: Cross multiply
    5,309,961.21x = 7,964,987.85 × 1,715,728.50
  4. Step 4: Simplify right side
    5,309,961.21x = 13,665,756,656,398.72
  5. Step 5: Solve for x
    x = 13,665,756,656,398.72/5,309,961.21
  6. Step 6: Final answer
    x = 2,573,607.62

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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.