Home / 1,248,321.20-1,871,388.30-847,662.80

Finding the Fourth Proportional to 1,248,321.20, 1,871,388.30 and 847,662.80

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Solution

The fourth proportional to 1,248,321.20, 1,871,388.30 and 847,662.80 is: 1,270,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,321.20 : 1,871,388.30 = 847,662.80 : x
  2. Step 2: Convert to fraction form
    1,248,321.20/1,871,388.30 = 847,662.80/x
  3. Step 3: Cross multiply
    1,248,321.20x = 1,871,388.30 × 847,662.80
  4. Step 4: Simplify right side
    1,248,321.20x = 1,586,306,246,265.24
  5. Step 5: Solve for x
    x = 1,586,306,246,265.24/1,248,321.20
  6. Step 6: Final answer
    x = 1,270,751.67

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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.