Home / 1,431,515.10-2,147,216.54-484,885.79

Finding the Fourth Proportional to 1,431,515.10, 2,147,216.54 and 484,885.79

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Solution

The fourth proportional to 1,431,515.10, 2,147,216.54 and 484,885.79 is: 727,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,515.10 : 2,147,216.54 = 484,885.79 : x
  2. Step 2: Convert to fraction form
    1,431,515.10/2,147,216.54 = 484,885.79/x
  3. Step 3: Cross multiply
    1,431,515.10x = 2,147,216.54 × 484,885.79
  4. Step 4: Simplify right side
    1,431,515.10x = 1,041,154,777,562.88
  5. Step 5: Solve for x
    x = 1,041,154,777,562.88/1,431,515.10
  6. Step 6: Final answer
    x = 727,309.67

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1.5x scale

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.