Home / 1,431,515.30-2,147,216.85-484,885.98

Finding the Fourth Proportional to 1,431,515.30, 2,147,216.85 and 484,885.98

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Solution

The fourth proportional to 1,431,515.30, 2,147,216.85 and 484,885.98 is: 727,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,515.30 : 2,147,216.85 = 484,885.98 : x
  2. Step 2: Convert to fraction form
    1,431,515.30/2,147,216.85 = 484,885.98/x
  3. Step 3: Cross multiply
    1,431,515.30x = 2,147,216.85 × 484,885.98
  4. Step 4: Simplify right side
    1,431,515.30x = 1,041,155,346,584.76
  5. Step 5: Solve for x
    x = 1,041,155,346,584.76/1,431,515.30
  6. Step 6: Final answer
    x = 727,309.97

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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.