Home / 669,977.28-1,005,121.26-220,681.98

Finding the Fourth Proportional to 669,977.28, 1,005,121.26 and 220,681.98

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Solution

The fourth proportional to 669,977.28, 1,005,121.26 and 220,681.98 is: 331,074.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,977.28 : 1,005,121.26 = 220,681.98 : x
  2. Step 2: Convert to fraction form
    669,977.28/1,005,121.26 = 220,681.98/x
  3. Step 3: Cross multiply
    669,977.28x = 1,005,121.26 × 220,681.98
  4. Step 4: Simplify right side
    669,977.28x = 221,812,149,796.90
  5. Step 5: Solve for x
    x = 221,812,149,796.90/669,977.28
  6. Step 6: Final answer
    x = 331,074.14

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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.